diff --git a/config/attributescfg.go b/config/attributescfg.go
index 2032569d4..192679c5b 100644
--- a/config/attributescfg.go
+++ b/config/attributescfg.go
@@ -42,6 +42,7 @@ type AttributeSCfg struct {
 	StringIndexedFields *[]string
 	PrefixIndexedFields *[]string
 	SuffixIndexedFields *[]string
+	ExistsIndexedFields *[]string
 	NestedFields        bool
 	AnyContext          bool
 	Opts                *AttributesOpts
@@ -123,6 +124,10 @@ func (alS *AttributeSCfg) loadFromJSONCfg(jsnCfg *AttributeSJsonCfg) (err error)
 		copy(sif, *jsnCfg.Suffix_indexed_fields)
 		alS.SuffixIndexedFields = &sif
 	}
+	if jsnCfg.ExistsIndexedFields != nil {
+		eif := slices.Clone(*jsnCfg.ExistsIndexedFields)
+		alS.ExistsIndexedFields = &eif
+	}
 	if jsnCfg.Nested_fields != nil {
 		alS.NestedFields = *jsnCfg.Nested_fields
 	}
@@ -168,6 +173,10 @@ func (alS *AttributeSCfg) AsMapInterface() (initialMP map[string]any) {
 		copy(suffixIndexedFields, *alS.SuffixIndexedFields)
 		initialMP[utils.SuffixIndexedFieldsCfg] = suffixIndexedFields
 	}
+	if alS.ExistsIndexedFields != nil {
+		eif := slices.Clone(*alS.ExistsIndexedFields)
+		initialMP[utils.ExistsIndexedFieldsCfg] = eif
+	}
 	if alS.StatSConns != nil {
 		statSConns := make([]string, len(alS.StatSConns))
 		for i, item := range alS.StatSConns {
@@ -253,5 +262,9 @@ func (alS AttributeSCfg) Clone() (cln *AttributeSCfg) {
 		copy(idx, *alS.SuffixIndexedFields)
 		cln.SuffixIndexedFields = &idx
 	}
+	if alS.ExistsIndexedFields != nil {
+		idx := slices.Clone(*alS.ExistsIndexedFields)
+		cln.ExistsIndexedFields = &idx
+	}
 	return
 }
diff --git a/config/attributescfg_test.go b/config/attributescfg_test.go
index bcc575ddb..44ff5eb5a 100644
--- a/config/attributescfg_test.go
+++ b/config/attributescfg_test.go
@@ -35,6 +35,7 @@ func TestAttributeSCfgloadFromJsonCfg(t *testing.T) {
 		String_indexed_fields: &[]string{"*req.index1"},
 		Prefix_indexed_fields: &[]string{"*req.index1", "*req.index2"},
 		Suffix_indexed_fields: &[]string{"*req.index1"},
+		ExistsIndexedFields:   &[]string{"*req.index1"},
 		Nested_fields:         utils.BoolPointer(true),
 		Any_context:           utils.BoolPointer(true),
 		Opts: &AttributesOptsJson{
@@ -51,6 +52,7 @@ func TestAttributeSCfgloadFromJsonCfg(t *testing.T) {
 		StringIndexedFields: &[]string{"*req.index1"},
 		PrefixIndexedFields: &[]string{"*req.index1", "*req.index2"},
 		SuffixIndexedFields: &[]string{"*req.index1"},
+		ExistsIndexedFields: &[]string{"*req.index1"},
 		NestedFields:        true,
 		AnyContext:          true,
 		Opts: &AttributesOpts{
@@ -80,7 +82,8 @@ func TestAttributeSCfgAsMapInterface(t *testing.T) {
 	"stats_conns": ["*internal"],			
 	"resources_conns": ["*internal"],		
 	"apiers_conns": ["*internal"],			
-	"prefix_indexed_fields": ["*req.index1","*req.index2"],		
+	"prefix_indexed_fields": ["*req.index1","*req.index2"],
+	"exists_indexed_fields": ["*req.index1","*req.index2"],
     "string_indexed_fields": ["*req.index1"],
 	"opts": {
 		"*processRuns": 3,
@@ -95,6 +98,7 @@ func TestAttributeSCfgAsMapInterface(t *testing.T) {
 		utils.ApierSConnsCfg:         []string{utils.MetaInternal},
 		utils.StringIndexedFieldsCfg: []string{"*req.index1"},
 		utils.PrefixIndexedFieldsCfg: []string{"*req.index1", "*req.index2"},
+		utils.ExistsIndexedFieldsCfg: []string{"*req.index1", "*req.index2"},
 		utils.IndexedSelectsCfg:      true,
 		utils.NestedFieldsCfg:        false,
 		utils.SuffixIndexedFieldsCfg: []string{},
@@ -118,6 +122,7 @@ func TestAttributeSCfgAsMapInterface2(t *testing.T) {
 	cfgJSONStr := `{
      "attributes": {
            "suffix_indexed_fields": ["*req.index1","*req.index2"],
+           "exists_indexed_fields": ["*req.index1","*req.index2"],
            "nested_fields": true,
            "enabled": true,
 		   "opts": {
@@ -133,6 +138,7 @@ func TestAttributeSCfgAsMapInterface2(t *testing.T) {
 		utils.IndexedSelectsCfg:      true,
 		utils.PrefixIndexedFieldsCfg: []string{},
 		utils.SuffixIndexedFieldsCfg: []string{"*req.index1", "*req.index2"},
+		utils.ExistsIndexedFieldsCfg: []string{"*req.index1", "*req.index2"},
 		utils.NestedFieldsCfg:        true,
 		utils.AnyContextCfg:          true,
 		utils.OptsCfg: map[string]any{
@@ -163,6 +169,7 @@ func TestAttributeSCfgAsMapInterface3(t *testing.T) {
 		utils.IndexedSelectsCfg:      true,
 		utils.PrefixIndexedFieldsCfg: []string{},
 		utils.SuffixIndexedFieldsCfg: []string{},
+		utils.ExistsIndexedFieldsCfg: []string{},
 		utils.NestedFieldsCfg:        false,
 		utils.AnyContextCfg:          true,
 		utils.OptsCfg: map[string]any{
diff --git a/config/chargerscfg.go b/config/chargerscfg.go
index 77c0dcb5c..f3510c539 100644
--- a/config/chargerscfg.go
+++ b/config/chargerscfg.go
@@ -19,6 +19,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>
 package config
 
 import (
+	"slices"
+
 	"github.com/cgrates/cgrates/utils"
 )
 
@@ -30,6 +32,7 @@ type ChargerSCfg struct {
 	StringIndexedFields *[]string
 	PrefixIndexedFields *[]string
 	SuffixIndexedFields *[]string
+	ExistsIndexedFields *[]string
 	NestedFields        bool
 }
 
@@ -68,6 +71,10 @@ func (cS *ChargerSCfg) loadFromJSONCfg(jsnCfg *ChargerSJsonCfg) (err error) {
 		copy(sif, *jsnCfg.Suffix_indexed_fields)
 		cS.SuffixIndexedFields = &sif
 	}
+	if jsnCfg.ExistsIndexedFields != nil {
+		eif := slices.Clone(*jsnCfg.ExistsIndexedFields)
+		cS.ExistsIndexedFields = &eif
+	}
 	if jsnCfg.Nested_fields != nil {
 		cS.NestedFields = *jsnCfg.Nested_fields
 	}
@@ -106,6 +113,10 @@ func (cS *ChargerSCfg) AsMapInterface() (initialMP map[string]any) {
 		copy(sufixIndexedFields, *cS.SuffixIndexedFields)
 		initialMP[utils.SuffixIndexedFieldsCfg] = sufixIndexedFields
 	}
+	if cS.ExistsIndexedFields != nil {
+		eif := slices.Clone(*cS.ExistsIndexedFields)
+		initialMP[utils.ExistsIndexedFieldsCfg] = eif
+	}
 	return
 }
 
@@ -136,5 +147,9 @@ func (cS ChargerSCfg) Clone() (cln *ChargerSCfg) {
 		copy(idx, *cS.SuffixIndexedFields)
 		cln.SuffixIndexedFields = &idx
 	}
+	if cS.ExistsIndexedFields != nil {
+		idx := slices.Clone(*cS.ExistsIndexedFields)
+		cln.ExistsIndexedFields = &idx
+	}
 	return
 }
diff --git a/config/chargerscfg_test.go b/config/chargerscfg_test.go
index 57beefac3..9b205897a 100644
--- a/config/chargerscfg_test.go
+++ b/config/chargerscfg_test.go
@@ -32,6 +32,7 @@ func TestChargerSCfgloadFromJsonCfg(t *testing.T) {
 		String_indexed_fields: &[]string{"*req.Field1"},
 		Prefix_indexed_fields: &[]string{"*req.Field1", "*req.Field2"},
 		Suffix_indexed_fields: &[]string{"*req.Field1", "*req.Field2"},
+		ExistsIndexedFields:   &[]string{"*req.Field1", "*req.Field2"},
 		Nested_fields:         utils.BoolPointer(true),
 	}
 	expected := &ChargerSCfg{
@@ -41,6 +42,7 @@ func TestChargerSCfgloadFromJsonCfg(t *testing.T) {
 		StringIndexedFields: &[]string{"*req.Field1"},
 		PrefixIndexedFields: &[]string{"*req.Field1", "*req.Field2"},
 		SuffixIndexedFields: &[]string{"*req.Field1", "*req.Field2"},
+		ExistsIndexedFields: &[]string{"*req.Field1", "*req.Field2"},
 		NestedFields:        true,
 	}
 	jsncfg := NewDefaultCGRConfig()
@@ -68,6 +70,7 @@ func TestChargerSCfgAsMapInterface(t *testing.T) {
 		utils.PrefixIndexedFieldsCfg: []string{},
 		utils.NestedFieldsCfg:        false,
 		utils.SuffixIndexedFieldsCfg: []string{},
+		utils.ExistsIndexedFieldsCfg: []string{},
 	}
 	if cgrCfg, err := NewCGRConfigFromJSONStringWithDefaults(cfgJSONStr); err != nil {
 		t.Error(err)
@@ -83,8 +86,9 @@ func TestChargerSCfgAsMapInterface1(t *testing.T) {
 			"attributes_conns": ["*internal:*attributes", "*conn1"],					
 			"indexed_selects":true,			
             "string_indexed_fields": ["*req.Field1","*req.Field2","*req.Field3"],
-			 "prefix_indexed_fields": ["*req.DestinationPrefix"],
-             "suffix_indexed_fields": ["*req.Field1","*req.Field2","*req.Field3"],		
+			"prefix_indexed_fields": ["*req.DestinationPrefix"],
+            "suffix_indexed_fields": ["*req.Field1","*req.Field2","*req.Field3"],		
+            "exists_indexed_fields": ["*req.Field1","*req.Field2","*req.Field3"],		
 			"nested_fields": false,					
 		},	
 	}`
@@ -96,6 +100,7 @@ func TestChargerSCfgAsMapInterface1(t *testing.T) {
 		utils.PrefixIndexedFieldsCfg: []string{"*req.DestinationPrefix"},
 		utils.NestedFieldsCfg:        false,
 		utils.SuffixIndexedFieldsCfg: []string{"*req.Field1", "*req.Field2", "*req.Field3"},
+		utils.ExistsIndexedFieldsCfg: []string{"*req.Field1", "*req.Field2", "*req.Field3"},
 	}
 	if cgrCfg, err := NewCGRConfigFromJSONStringWithDefaults(cfgJSONStr); err != nil {
 		t.Error(err)
diff --git a/config/config_defaults.go b/config/config_defaults.go
index 7e4bdab6a..f476e8a41 100644
--- a/config/config_defaults.go
+++ b/config/config_defaults.go
@@ -836,6 +836,7 @@ const CGRATES_CFG_JSON = `
 	//"string_indexed_fields": [],		// query indexes based on these fields for faster processing
 	"prefix_indexed_fields": [],		// query indexes based on these fields for faster processing
 	"suffix_indexed_fields": [],		// query indexes based on these fields for faster processing
+	"exists_indexed_fields": [],		// query indexes based on these fields for faster processing
 	"nested_fields": false,			// determines which field is checked when matching indexed filters(true: all; false: only the one on the first level)
 	"any_context": true,			// if we match the *any context
 	"opts": {
@@ -854,6 +855,7 @@ const CGRATES_CFG_JSON = `
 	//"string_indexed_fields": [],	// query indexes based on these fields for faster processing
 	"prefix_indexed_fields": [],	// query indexes based on these fields for faster processing
 	"suffix_indexed_fields": [],	// query indexes based on these fields for faster processing
+	"exists_indexed_fields": [],	// query indexes based on these fields for faster processing
 	"nested_fields": false,		// determines which field is checked when matching indexed filters(true: all; false: only the one on the first level)
 },
 
@@ -866,6 +868,7 @@ const CGRATES_CFG_JSON = `
 	//"string_indexed_fields": [],	// query indexes based on these fields for faster processing
 	"prefix_indexed_fields": [],	// query indexes based on these fields for faster processing
 	"suffix_indexed_fields": [],	// query indexes based on these fields for faster processing
+	"exists_indexed_fields": [],	// query indexes based on these fields for faster processing
 	"nested_fields": false,		// determines which field is checked when matching indexed filters(true: all; false: only the one on the first level)
 	"opts": {
 		"*usageID": "",
@@ -886,6 +889,7 @@ const CGRATES_CFG_JSON = `
 	//"string_indexed_fields": [],	// query indexes based on these fields for faster processing
 	"prefix_indexed_fields": [],	// query indexes based on these fields for faster processing
 	"suffix_indexed_fields": [],	// query indexes based on these fields for faster processing
+	"exists_indexed_fields": [],	// query indexes based on these fields for faster processing
 	"nested_fields": false,		// determines which field is checked when matching indexed filters(true: all; false: only the one on the first level)
 	"opts": {
 		"*profileIDs": [],
@@ -925,6 +929,7 @@ const CGRATES_CFG_JSON = `
 	//"string_indexed_fields": [],		// query indexes based on these fields for faster processing
 	"prefix_indexed_fields": [],		// query indexes based on these fields for faster processing
 	"suffix_indexed_fields": [],		// query indexes based on these fields for faster processing
+	"exists_indexed_fields": [],		// query indexes based on these fields for faster processing
 	"nested_fields": false,			// determines which field is checked when matching indexed filters(true: all; false: only the one on the first level)
 	"opts": {
 		"*profileIDs": [],
@@ -939,6 +944,7 @@ const CGRATES_CFG_JSON = `
 	//"string_indexed_fields": [],	// query indexes based on these fields for faster processing
 	"prefix_indexed_fields": [],	// query indexes based on these fields for faster processing
 	"suffix_indexed_fields": [],	// query indexes based on these fields for faster processing
+	"exists_indexed_fields": [],	// query indexes based on these fields for faster processing
 	"nested_fields": false,		// determines which field is checked when matching indexed filters(true: all; false: only the one on the first level)
 	"attributes_conns": [],		// connections to AttributeS for altering events before route queries: <""|*internal|$rpc_conns_id>
 	"resources_conns": [],		// connections to ResourceS for *res sorting, empty to disable functionality: <""|*internal|$rpc_conns_id>
@@ -1224,6 +1230,7 @@ const CGRATES_CFG_JSON = `
 	//"string_indexed_fields": [],	// query indexes based on these fields for faster processing
 	"prefix_indexed_fields": [],	// query indexes based on these fields for faster processing
 	"suffix_indexed_fields": [],	// query indexes based on these fields for faster processing
+	"exists_indexed_fields": [],	// query indexes based on these fields for faster processing
 	"nested_fields": false,		// determines which field is checked when matching indexed filters(true: all; false: only the one on the first level)
 	"attributes_conns": [],		// connections to AttributeS for API authorization, empty to disable auth functionality: <""|*internal|$rpc_conns_id>
 	"any_subsystem": true,		// if we match the *any subsystem
diff --git a/config/config_it_test.go b/config/config_it_test.go
index cc0349742..b68457356 100644
--- a/config/config_it_test.go
+++ b/config/config_it_test.go
@@ -155,6 +155,7 @@ func testCGRConfigReloadAttributeS(t *testing.T) {
 		StringIndexedFields: &[]string{utils.MetaReq + utils.NestingSep + utils.AccountField},
 		PrefixIndexedFields: &[]string{},
 		SuffixIndexedFields: &[]string{},
+		ExistsIndexedFields: &[]string{},
 		IndexedSelects:      true,
 		AnyContext:          true,
 		Opts: &AttributesOpts{
@@ -210,6 +211,7 @@ func testCGRConfigReloadChargerS(t *testing.T) {
 		StringIndexedFields: &[]string{utils.MetaReq + utils.NestingSep + utils.AccountField},
 		PrefixIndexedFields: &[]string{},
 		SuffixIndexedFields: &[]string{},
+		ExistsIndexedFields: &[]string{},
 		IndexedSelects:      true,
 		AttributeSConns:     []string{"*localhost"},
 	}
@@ -238,6 +240,7 @@ func testCGRConfigReloadThresholdS(t *testing.T) {
 		StringIndexedFields: &[]string{utils.MetaReq + utils.NestingSep + utils.AccountField},
 		PrefixIndexedFields: &[]string{},
 		SuffixIndexedFields: &[]string{},
+		ExistsIndexedFields: &[]string{},
 		IndexedSelects:      true,
 		Opts: &ThresholdsOpts{
 			ProfileIDs: []string{},
@@ -268,6 +271,7 @@ func testCGRConfigReloadStatS(t *testing.T) {
 		StringIndexedFields: &[]string{utils.MetaReq + utils.NestingSep + utils.AccountField},
 		PrefixIndexedFields: &[]string{},
 		SuffixIndexedFields: &[]string{},
+		ExistsIndexedFields: &[]string{},
 		IndexedSelects:      true,
 		ThresholdSConns:     []string{utils.MetaLocalHost},
 		Opts: &StatsOpts{
@@ -300,6 +304,7 @@ func testCGRConfigReloadResourceS(t *testing.T) {
 		StringIndexedFields: &[]string{utils.MetaReq + utils.NestingSep + utils.AccountField},
 		PrefixIndexedFields: &[]string{},
 		SuffixIndexedFields: &[]string{},
+		ExistsIndexedFields: &[]string{},
 		IndexedSelects:      true,
 		ThresholdSConns:     []string{utils.MetaLocalHost},
 		Opts: &ResourcesOpts{
@@ -332,6 +337,7 @@ func testCGRConfigReloadSupplierS(t *testing.T) {
 		StringIndexedFields: &[]string{"*req.LCRProfile"},
 		PrefixIndexedFields: &[]string{utils.MetaReq + utils.NestingSep + utils.Destination},
 		SuffixIndexedFields: &[]string{},
+		ExistsIndexedFields: &[]string{},
 		ResourceSConns:      []string{},
 		StatSConns:          []string{},
 		AttributeSConns:     []string{},
diff --git a/config/config_json_test.go b/config/config_json_test.go
index a80cc7210..6935daa59 100644
--- a/config/config_json_test.go
+++ b/config/config_json_test.go
@@ -1141,6 +1141,7 @@ func TestDfAttributeServJsonCfg(t *testing.T) {
 		String_indexed_fields: nil,
 		Prefix_indexed_fields: &[]string{},
 		Suffix_indexed_fields: &[]string{},
+		ExistsIndexedFields:   &[]string{},
 		Nested_fields:         utils.BoolPointer(false),
 		Any_context:           utils.BoolPointer(true),
 		Opts: &AttributesOptsJson{
@@ -1169,6 +1170,7 @@ func TestDfChargerServJsonCfg(t *testing.T) {
 		String_indexed_fields: nil,
 		Prefix_indexed_fields: &[]string{},
 		Suffix_indexed_fields: &[]string{},
+		ExistsIndexedFields:   &[]string{},
 		Nested_fields:         utils.BoolPointer(false),
 	}
 	dfCgrJSONCfg, err := NewCgrJsonCfgFromBytes([]byte(CGRATES_CFG_JSON))
@@ -1210,6 +1212,7 @@ func TestDfResourceLimiterSJsonCfg(t *testing.T) {
 		String_indexed_fields: nil,
 		Prefix_indexed_fields: &[]string{},
 		Suffix_indexed_fields: &[]string{},
+		ExistsIndexedFields:   &[]string{},
 		Nested_fields:         utils.BoolPointer(false),
 		Opts: &ResourcesOptsJson{
 			UsageID: utils.StringPointer(utils.EmptyString),
@@ -1237,6 +1240,7 @@ func TestDfStatServiceJsonCfg(t *testing.T) {
 		String_indexed_fields:    nil,
 		Prefix_indexed_fields:    &[]string{},
 		Suffix_indexed_fields:    &[]string{},
+		ExistsIndexedFields:      &[]string{},
 		Nested_fields:            utils.BoolPointer(false),
 		Ees_conns:                &[]string{},
 		Ees_exporter_ids:         &[]string{},
@@ -1265,6 +1269,7 @@ func TestDfThresholdSJsonCfg(t *testing.T) {
 		String_indexed_fields: nil,
 		Prefix_indexed_fields: &[]string{},
 		Suffix_indexed_fields: &[]string{},
+		ExistsIndexedFields:   &[]string{},
 		Nested_fields:         utils.BoolPointer(false),
 		Opts: &ThresholdsOptsJson{
 			ProfileIDs:           &[]string{},
@@ -1289,6 +1294,7 @@ func TestDfRouteSJsonCfg(t *testing.T) {
 		String_indexed_fields: nil,
 		Prefix_indexed_fields: &[]string{},
 		Suffix_indexed_fields: &[]string{},
+		ExistsIndexedFields:   &[]string{},
 		Attributes_conns:      &[]string{},
 		Resources_conns:       &[]string{},
 		Stats_conns:           &[]string{},
@@ -1930,6 +1936,7 @@ func TestDfDispatcherSJsonCfg(t *testing.T) {
 		String_indexed_fields: nil,
 		Prefix_indexed_fields: &[]string{},
 		Suffix_indexed_fields: &[]string{},
+		ExistsIndexedFields:   &[]string{},
 		Attributes_conns:      &[]string{},
 		Nested_fields:         utils.BoolPointer(false),
 		Any_subsystem:         utils.BoolPointer(true),
diff --git a/config/config_test.go b/config/config_test.go
index a13a03d07..3cfff3e27 100644
--- a/config/config_test.go
+++ b/config/config_test.go
@@ -717,6 +717,7 @@ func TestCgrCfgJSONDefaultSChargerSCfg(t *testing.T) {
 		StringIndexedFields: nil,
 		PrefixIndexedFields: &[]string{},
 		SuffixIndexedFields: &[]string{},
+		ExistsIndexedFields: &[]string{},
 	}
 	if !reflect.DeepEqual(eChargerSCfg, cgrCfg.chargerSCfg) {
 		t.Errorf("received: %+v, expecting: %+v", eChargerSCfg, cgrCfg.chargerSCfg)
@@ -732,6 +733,7 @@ func TestCgrCfgJSONDefaultsResLimCfg(t *testing.T) {
 		StringIndexedFields: nil,
 		PrefixIndexedFields: &[]string{},
 		SuffixIndexedFields: &[]string{},
+		ExistsIndexedFields: &[]string{},
 		Opts: &ResourcesOpts{
 			UsageID: utils.EmptyString,
 			Units:   1,
@@ -752,6 +754,7 @@ func TestCgrCfgJSONDefaultStatsCfg(t *testing.T) {
 		StringIndexedFields: nil,
 		PrefixIndexedFields: &[]string{},
 		SuffixIndexedFields: &[]string{},
+		ExistsIndexedFields: &[]string{},
 		Opts: &StatsOpts{
 			ProfileIDs: []string{},
 		},
@@ -770,6 +773,7 @@ func TestCgrCfgJSONDefaultThresholdSCfg(t *testing.T) {
 		StringIndexedFields: nil,
 		PrefixIndexedFields: &[]string{},
 		SuffixIndexedFields: &[]string{},
+		ExistsIndexedFields: &[]string{},
 		Opts: &ThresholdsOpts{
 			ProfileIDs: []string{},
 		},
@@ -786,6 +790,7 @@ func TestCgrCfgJSONDefaultRouteSCfg(t *testing.T) {
 		StringIndexedFields: nil,
 		PrefixIndexedFields: &[]string{},
 		SuffixIndexedFields: &[]string{},
+		ExistsIndexedFields: &[]string{},
 		AttributeSConns:     []string{},
 		ResourceSConns:      []string{},
 		StatSConns:          []string{},
@@ -1832,6 +1837,7 @@ func TestAttributeSConfig(t *testing.T) {
 		IndexedSelects:      true,
 		PrefixIndexedFields: &[]string{},
 		SuffixIndexedFields: &[]string{},
+		ExistsIndexedFields: &[]string{},
 		NestedFields:        false,
 		AnyContext:          true,
 		Opts: &AttributesOpts{
@@ -1853,6 +1859,7 @@ func TestChargersConfig(t *testing.T) {
 		AttributeSConns:     []string{},
 		PrefixIndexedFields: &[]string{},
 		SuffixIndexedFields: &[]string{},
+		ExistsIndexedFields: &[]string{},
 		NestedFields:        false,
 	}
 	cgrConfig := NewDefaultCGRConfig()
@@ -1870,6 +1877,7 @@ func TestResourceSConfig(t *testing.T) {
 		ThresholdSConns:     []string{},
 		PrefixIndexedFields: &[]string{},
 		SuffixIndexedFields: &[]string{},
+		ExistsIndexedFields: &[]string{},
 		NestedFields:        false,
 		Opts: &ResourcesOpts{
 			UsageID: "",
@@ -1892,6 +1900,7 @@ func TestStatSConfig(t *testing.T) {
 		ThresholdSConns:        []string{},
 		PrefixIndexedFields:    &[]string{},
 		SuffixIndexedFields:    &[]string{},
+		ExistsIndexedFields:    &[]string{},
 		NestedFields:           false,
 		Opts: &StatsOpts{
 			ProfileIDs: []string{},
@@ -1912,6 +1921,7 @@ func TestThresholdSConfig(t *testing.T) {
 		StoreInterval:       0,
 		PrefixIndexedFields: &[]string{},
 		SuffixIndexedFields: &[]string{},
+		ExistsIndexedFields: &[]string{},
 		NestedFields:        false,
 		Opts: &ThresholdsOpts{
 			ProfileIDs: []string{},
@@ -1930,6 +1940,7 @@ func TestRouteSConfig(t *testing.T) {
 		IndexedSelects:      true,
 		PrefixIndexedFields: &[]string{},
 		SuffixIndexedFields: &[]string{},
+		ExistsIndexedFields: &[]string{},
 		AttributeSConns:     []string{},
 		ResourceSConns:      []string{},
 		StatSConns:          []string{},
@@ -2102,6 +2113,7 @@ func TestDispatcherSConfig(t *testing.T) {
 		IndexedSelects:      true,
 		PrefixIndexedFields: &[]string{},
 		SuffixIndexedFields: &[]string{},
+		ExistsIndexedFields: &[]string{},
 		AttributeSConns:     []string{},
 		NestedFields:        false,
 		AnySubsystem:        true,
@@ -3123,6 +3135,7 @@ func TestCgrCfgJSONDefaultDispatcherSCfg(t *testing.T) {
 		StringIndexedFields: nil,
 		PrefixIndexedFields: &[]string{},
 		SuffixIndexedFields: &[]string{},
+		ExistsIndexedFields: &[]string{},
 		AttributeSConns:     []string{},
 		AnySubsystem:        true,
 	}
@@ -3950,6 +3963,7 @@ func TestV1GetConfigAttribute(t *testing.T) {
 			utils.IndexedSelectsCfg:      true,
 			utils.PrefixIndexedFieldsCfg: []string{},
 			utils.SuffixIndexedFieldsCfg: []string{},
+			utils.ExistsIndexedFieldsCfg: []string{},
 			utils.NestedFieldsCfg:        false,
 			utils.AnyContextCfg:          true,
 			utils.OptsCfg: map[string]any{
@@ -3978,6 +3992,7 @@ func TestV1GetConfigChargers(t *testing.T) {
 			utils.PrefixIndexedFieldsCfg: []string{},
 			utils.NestedFieldsCfg:        false,
 			utils.SuffixIndexedFieldsCfg: []string{},
+			utils.ExistsIndexedFieldsCfg: []string{},
 		},
 	}
 	cfgCgr := NewDefaultCGRConfig()
@@ -3998,6 +4013,7 @@ func TestV1GetConfigResourceS(t *testing.T) {
 			utils.IndexedSelectsCfg:      true,
 			utils.PrefixIndexedFieldsCfg: []string{},
 			utils.SuffixIndexedFieldsCfg: []string{},
+			utils.ExistsIndexedFieldsCfg: []string{},
 			utils.NestedFieldsCfg:        false,
 			utils.OptsCfg: map[string]any{
 				utils.MetaUnitsCfg:   1.,
@@ -4024,6 +4040,7 @@ func TestV1GetConfigStats(t *testing.T) {
 			utils.IndexedSelectsCfg:         true,
 			utils.PrefixIndexedFieldsCfg:    []string{},
 			utils.SuffixIndexedFieldsCfg:    []string{},
+			utils.ExistsIndexedFieldsCfg:    []string{},
 			utils.NestedFieldsCfg:           false,
 			utils.OptsCfg: map[string]any{
 				utils.MetaProfileIDs:              []string{},
@@ -4050,6 +4067,7 @@ func TestV1GetConfigThresholds(t *testing.T) {
 			utils.IndexedSelectsCfg:      true,
 			utils.PrefixIndexedFieldsCfg: []string{},
 			utils.SuffixIndexedFieldsCfg: []string{},
+			utils.ExistsIndexedFieldsCfg: []string{},
 			utils.NestedFieldsCfg:        false,
 			utils.OptsCfg: map[string]any{
 				utils.MetaProfileIDs:              []string{},
@@ -4073,6 +4091,7 @@ func TestV1GetConfigRoutes(t *testing.T) {
 			utils.IndexedSelectsCfg:      true,
 			utils.PrefixIndexedFieldsCfg: []string{},
 			utils.SuffixIndexedFieldsCfg: []string{},
+			utils.ExistsIndexedFieldsCfg: []string{},
 			utils.NestedFieldsCfg:        false,
 			utils.AttributeSConnsCfg:     []string{},
 			utils.ResourceSConnsCfg:      []string{},
@@ -4143,6 +4162,7 @@ func TestV1GetConfigDispatcherS(t *testing.T) {
 			utils.IndexedSelectsCfg:      true,
 			utils.PrefixIndexedFieldsCfg: []string{},
 			utils.SuffixIndexedFieldsCfg: []string{},
+			utils.ExistsIndexedFieldsCfg: []string{},
 			utils.NestedFieldsCfg:        false,
 			utils.AttributeSConnsCfg:     []string{},
 			utils.AnySubsystemCfg:        true,
@@ -4939,7 +4959,7 @@ func TestV1GetConfigAsJSONDNSAgent(t *testing.T) {
 
 func TestV1GetConfigAsJSONAttributes(t *testing.T) {
 	var reply string
-	expected := `{"attributes":{"any_context":true,"apiers_conns":[],"enabled":false,"indexed_selects":true,"nested_fields":false,"opts":{"*processRuns":1,"*profileIDs":[],"*profileIgnoreFilters":false,"*profileRuns":0},"prefix_indexed_fields":[],"resources_conns":[],"stats_conns":[],"suffix_indexed_fields":[]}}`
+	expected := `{"attributes":{"any_context":true,"apiers_conns":[],"enabled":false,"exists_indexed_fields":[],"indexed_selects":true,"nested_fields":false,"opts":{"*processRuns":1,"*profileIDs":[],"*profileIgnoreFilters":false,"*profileRuns":0},"prefix_indexed_fields":[],"resources_conns":[],"stats_conns":[],"suffix_indexed_fields":[]}}`
 	cgrCfg := NewDefaultCGRConfig()
 	if err := cgrCfg.V1GetConfigAsJSON(context.Background(), &SectionWithAPIOpts{Section: ATTRIBUTE_JSN}, &reply); err != nil {
 		t.Error(err)
@@ -4950,7 +4970,7 @@ func TestV1GetConfigAsJSONAttributes(t *testing.T) {
 
 func TestV1GetConfigAsJSONChargerS(t *testing.T) {
 	var reply string
-	expected := `{"chargers":{"attributes_conns":[],"enabled":false,"indexed_selects":true,"nested_fields":false,"prefix_indexed_fields":[],"suffix_indexed_fields":[]}}`
+	expected := `{"chargers":{"attributes_conns":[],"enabled":false,"exists_indexed_fields":[],"indexed_selects":true,"nested_fields":false,"prefix_indexed_fields":[],"suffix_indexed_fields":[]}}`
 	cgrCfg := NewDefaultCGRConfig()
 	if err := cgrCfg.V1GetConfigAsJSON(context.Background(), &SectionWithAPIOpts{Section: ChargerSCfgJson}, &reply); err != nil {
 		t.Error(err)
@@ -4961,7 +4981,7 @@ func TestV1GetConfigAsJSONChargerS(t *testing.T) {
 
 func TestV1GetConfigAsJSONResourceS(t *testing.T) {
 	var reply string
-	expected := `{"resources":{"enabled":false,"indexed_selects":true,"nested_fields":false,"opts":{"*units":1,"*usageID":""},"prefix_indexed_fields":[],"store_interval":"","suffix_indexed_fields":[],"thresholds_conns":[]}}`
+	expected := `{"resources":{"enabled":false,"exists_indexed_fields":[],"indexed_selects":true,"nested_fields":false,"opts":{"*units":1,"*usageID":""},"prefix_indexed_fields":[],"store_interval":"","suffix_indexed_fields":[],"thresholds_conns":[]}}`
 	cgrCfg := NewDefaultCGRConfig()
 	if err := cgrCfg.V1GetConfigAsJSON(context.Background(), &SectionWithAPIOpts{Section: RESOURCES_JSON}, &reply); err != nil {
 		t.Error(err)
@@ -4972,7 +4992,7 @@ func TestV1GetConfigAsJSONResourceS(t *testing.T) {
 
 func TestV1GetConfigAsJSONStatS(t *testing.T) {
 	var reply string
-	expected := `{"stats":{"ees_conns":[],"ees_exporter_ids":[],"enabled":false,"indexed_selects":true,"nested_fields":false,"opts":{"*profileIDs":[],"*profileIgnoreFilters":false},"prefix_indexed_fields":[],"store_interval":"","store_uncompressed_limit":0,"suffix_indexed_fields":[],"thresholds_conns":[]}}`
+	expected := `{"stats":{"ees_conns":[],"ees_exporter_ids":[],"enabled":false,"exists_indexed_fields":[],"indexed_selects":true,"nested_fields":false,"opts":{"*profileIDs":[],"*profileIgnoreFilters":false},"prefix_indexed_fields":[],"store_interval":"","store_uncompressed_limit":0,"suffix_indexed_fields":[],"thresholds_conns":[]}}`
 	cgrCfg := NewDefaultCGRConfig()
 	if err := cgrCfg.V1GetConfigAsJSON(context.Background(), &SectionWithAPIOpts{Section: STATS_JSON}, &reply); err != nil {
 		t.Error(err)
@@ -4983,7 +5003,7 @@ func TestV1GetConfigAsJSONStatS(t *testing.T) {
 
 func TestV1GetConfigAsJSONThresholdS(t *testing.T) {
 	var reply string
-	expected := `{"thresholds":{"enabled":false,"indexed_selects":true,"nested_fields":false,"opts":{"*profileIDs":[],"*profileIgnoreFilters":false},"prefix_indexed_fields":[],"store_interval":"","suffix_indexed_fields":[]}}`
+	expected := `{"thresholds":{"enabled":false,"exists_indexed_fields":[],"indexed_selects":true,"nested_fields":false,"opts":{"*profileIDs":[],"*profileIgnoreFilters":false},"prefix_indexed_fields":[],"store_interval":"","suffix_indexed_fields":[]}}`
 	cgrCfg := NewDefaultCGRConfig()
 	if err := cgrCfg.V1GetConfigAsJSON(context.Background(), &SectionWithAPIOpts{Section: THRESHOLDS_JSON}, &reply); err != nil {
 		t.Error(err)
@@ -4994,7 +5014,7 @@ func TestV1GetConfigAsJSONThresholdS(t *testing.T) {
 
 func TestV1GetConfigAsJSONRouteS(t *testing.T) {
 	var reply string
-	expected := `{"routes":{"attributes_conns":[],"default_ratio":1,"enabled":false,"indexed_selects":true,"nested_fields":false,"opts":{"*context":"*routes","*ignoreErrors":false,"*maxCost":""},"prefix_indexed_fields":[],"rals_conns":[],"resources_conns":[],"stats_conns":[],"suffix_indexed_fields":[]}}`
+	expected := `{"routes":{"attributes_conns":[],"default_ratio":1,"enabled":false,"exists_indexed_fields":[],"indexed_selects":true,"nested_fields":false,"opts":{"*context":"*routes","*ignoreErrors":false,"*maxCost":""},"prefix_indexed_fields":[],"rals_conns":[],"resources_conns":[],"stats_conns":[],"suffix_indexed_fields":[]}}`
 	cgrCfg := NewDefaultCGRConfig()
 	if err := cgrCfg.V1GetConfigAsJSON(context.Background(), &SectionWithAPIOpts{Section: RouteSJson}, &reply); err != nil {
 		t.Error(err)
@@ -5018,7 +5038,7 @@ func TestV1GetConfigAsJSONSureTax(t *testing.T) {
 
 func TestV1GetConfigAsJSONDispatcherS(t *testing.T) {
 	var reply string
-	expected := `{"dispatchers":{"any_subsystem":true,"attributes_conns":[],"enabled":false,"indexed_selects":true,"nested_fields":false,"prefix_indexed_fields":[],"prevent_loop":false,"suffix_indexed_fields":[]}}`
+	expected := `{"dispatchers":{"any_subsystem":true,"attributes_conns":[],"enabled":false,"exists_indexed_fields":[],"indexed_selects":true,"nested_fields":false,"prefix_indexed_fields":[],"prevent_loop":false,"suffix_indexed_fields":[]}}`
 	cgrCfg := NewDefaultCGRConfig()
 	if err := cgrCfg.V1GetConfigAsJSON(context.Background(), &SectionWithAPIOpts{Section: DispatcherSJson}, &reply); err != nil {
 		t.Error(err)
@@ -5275,7 +5295,7 @@ func TestV1GetConfigAsJSONAllConfig(t *testing.T) {
 }`
 	var reply string
 	cgrCfg, err := NewCGRConfigFromJSONStringWithDefaults(cfgJSON)
-	expected := 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,"chargers_conns":[],"client_protocol":2,"debit_interval":"0","default_usage":{"*any":"3h0m0s","*data":"1048576","*sms":"1","*voice":"3h0m0s"},"enabled":false,"listen_bigob":"","listen_bijson":"127.0.0.1:2014","min_dur_low_balance":"0","rals_conns":[],"replication_conns":[],"resources_conns":[],"routes_conns":[],"scheduler_conns":[],"session_indexes":[],"session_ttl":"0","stale_chan_max_extra_usage":"0","stats_conns":[],"stir":{"allowed_attest":["*any"],"default_attest":"A","payload_maxduration":"-1","privatekey_path":"","publickey_path":""},"store_session_costs":false,"terminate_attempts":5,"thresholds_conns":[]},"sip_agent":{"enabled":false,"listen":"127.0.0.1:5060","listen_net":"udp","request_processors":[],"retransmission_timer":1000000000,"sessions_conns":["*internal"],"timezone":""},"stats":{"ees_conns":[],"ees_exporter_ids":[],"enabled":false,"exists_indexed_fields":[],"indexed_selects":true,"nested_fields":false,"opts":{"*profileIDs":[],"*profileIgnoreFilters":false},"prefix_indexed_fields":[],"store_interval":"","store_uncompressed_limit":0,"suffix_indexed_fields":[],"thresholds_conns":[]},"stor_db":{"db_host":"127.0.0.1","db_name":"cgrates","db_password":"CGRateS.org","db_port":3306,"db_type":"*mysql","db_user":"cgrates","items":{"*cdrs":{"limit":-1,"remote":false,"replicate":false,"static_ttl":false},"*session_costs":{"limit":-1,"remote":false,"replicate":false,"static_ttl":false},"*tp_account_actions":{"limit":-1,"remote":false,"replicate":false,"static_ttl":false},"*tp_action_plans":{"limit":-1,"remote":false,"replicate":false,"static_ttl":false},"*tp_action_triggers":{"limit":-1,"remote":false,"replicate":false,"static_ttl":false},"*tp_actions":{"limit":-1,"remote":false,"replicate":false,"static_ttl":false},"*tp_attributes":{"limit":-1,"remote":false,"replicate":false,"static_ttl":false},"*tp_chargers":{"limit":-1,"remote":false,"replicate":false,"static_ttl":false},"*tp_destination_rates":{"limit":-1,"remote":false,"replicate":false,"static_ttl":false},"*tp_destinations":{"limit":-1,"remote":false,"replicate":false,"static_ttl":false},"*tp_dispatcher_hosts":{"limit":-1,"remote":false,"replicate":false,"static_ttl":false},"*tp_dispatcher_profiles":{"limit":-1,"remote":false,"replicate":false,"static_ttl":false},"*tp_filters":{"limit":-1,"remote":false,"replicate":false,"static_ttl":false},"*tp_rankings":{"limit":-1,"remote":false,"replicate":false,"static_ttl":false},"*tp_rates":{"limit":-1,"remote":false,"replicate":false,"static_ttl":false},"*tp_rating_plans":{"limit":-1,"remote":false,"replicate":false,"static_ttl":false},"*tp_rating_profiles":{"limit":-1,"remote":false,"replicate":false,"static_ttl":false},"*tp_resources":{"limit":-1,"remote":false,"replicate":false,"static_ttl":false},"*tp_routes":{"limit":-1,"remote":false,"replicate":false,"static_ttl":false},"*tp_shared_groups":{"limit":-1,"remote":false,"replicate":false,"static_ttl":false},"*tp_stats":{"limit":-1,"remote":false,"replicate":false,"static_ttl":false},"*tp_thresholds":{"limit":-1,"remote":false,"replicate":false,"static_ttl":false},"*tp_timings":{"limit":-1,"remote":false,"replicate":false,"static_ttl":false},"*tp_trends":{"limit":-1,"remote":false,"replicate":false,"static_ttl":false},"*versions":{"limit":-1,"remote":false,"replicate":false,"static_ttl":false}},"opts":{"internalDBBackupPath":"/var/lib/cgrates/internal_db/backup/stordb","internalDBDumpInterval":0,"internalDBDumpPath":"/var/lib/cgrates/internal_db/stordb","internalDBFileSizeLimit":1073741824,"internalDBRewriteInterval":0,"internalDBStartTimeout":300000000000,"mongoConnScheme":"mongodb","mongoQueryTimeout":"10s","mysqlDSNParams":{},"mysqlLocation":"Local","pgSSLMode":"disable","pgSchema":"","sqlConnMaxLifetime":"0s","sqlLogLevel":3,"sqlMaxIdleConns":10,"sqlMaxOpenConns":100},"prefix_indexed_fields":[],"remote_conns":null,"replication_conns":null,"string_indexed_fields":[]},"suretax":{"bill_to_number":"","business_unit":"","client_number":"","client_tracking":"~*req.CGRID","customer_number":"~*req.Subject","include_local_cost":false,"orig_number":"~*req.Subject","p2pplus4":"","p2pzipcode":"","plus4":"","regulatory_code":"03","response_group":"03","response_type":"D4","return_file_code":"0","sales_type_code":"R","tax_exemption_code_list":"","tax_included":"0","tax_situs_rule":"04","term_number":"~*req.Destination","timezone":"UTC","trans_type_code":"010101","unit_type":"00","units":"1","url":"","validation_key":"","zipcode":""},"templates":{"*asr":[{"mandatory":true,"path":"*diamreq.Session-Id","tag":"SessionId","type":"*variable","value":"~*req.Session-Id"},{"mandatory":true,"path":"*diamreq.Origin-Host","tag":"OriginHost","type":"*variable","value":"~*req.Destination-Host"},{"mandatory":true,"path":"*diamreq.Origin-Realm","tag":"OriginRealm","type":"*variable","value":"~*req.Destination-Realm"},{"mandatory":true,"path":"*diamreq.Destination-Realm","tag":"DestinationRealm","type":"*variable","value":"~*req.Origin-Realm"},{"mandatory":true,"path":"*diamreq.Destination-Host","tag":"DestinationHost","type":"*variable","value":"~*req.Origin-Host"},{"mandatory":true,"path":"*diamreq.Auth-Application-Id","tag":"AuthApplicationId","type":"*variable","value":"~*vars.*appid"}],"*cca":[{"mandatory":true,"path":"*rep.Session-Id","tag":"SessionId","type":"*variable","value":"~*req.Session-Id"},{"path":"*rep.Result-Code","tag":"ResultCode","type":"*constant","value":"2001"},{"mandatory":true,"path":"*rep.Origin-Host","tag":"OriginHost","type":"*variable","value":"~*vars.OriginHost"},{"mandatory":true,"path":"*rep.Origin-Realm","tag":"OriginRealm","type":"*variable","value":"~*vars.OriginRealm"},{"mandatory":true,"path":"*rep.Auth-Application-Id","tag":"AuthApplicationId","type":"*variable","value":"~*vars.*appid"},{"mandatory":true,"path":"*rep.CC-Request-Type","tag":"CCRequestType","type":"*variable","value":"~*req.CC-Request-Type"},{"mandatory":true,"path":"*rep.CC-Request-Number","tag":"CCRequestNumber","type":"*variable","value":"~*req.CC-Request-Number"}],"*cdrLog":[{"mandatory":true,"path":"*cdr.ToR","tag":"ToR","type":"*variable","value":"~*req.BalanceType"},{"mandatory":true,"path":"*cdr.OriginHost","tag":"OriginHost","type":"*constant","value":"127.0.0.1"},{"mandatory":true,"path":"*cdr.RequestType","tag":"RequestType","type":"*constant","value":"*none"},{"mandatory":true,"path":"*cdr.Tenant","tag":"Tenant","type":"*variable","value":"~*req.Tenant"},{"mandatory":true,"path":"*cdr.Account","tag":"Account","type":"*variable","value":"~*req.Account"},{"mandatory":true,"path":"*cdr.Subject","tag":"Subject","type":"*variable","value":"~*req.Account"},{"mandatory":true,"path":"*cdr.Cost","tag":"Cost","type":"*variable","value":"~*req.Cost"},{"mandatory":true,"path":"*cdr.Source","tag":"Source","type":"*constant","value":"*cdrLog"},{"mandatory":true,"path":"*cdr.Usage","tag":"Usage","type":"*constant","value":"1"},{"mandatory":true,"path":"*cdr.RunID","tag":"RunID","type":"*variable","value":"~*req.ActionType"},{"mandatory":true,"path":"*cdr.SetupTime","tag":"SetupTime","type":"*constant","value":"*now"},{"mandatory":true,"path":"*cdr.AnswerTime","tag":"AnswerTime","type":"*constant","value":"*now"},{"mandatory":true,"path":"*cdr.PreRated","tag":"PreRated","type":"*constant","value":"true"}],"*coa":[{"path":"*radDAReq.User-Name","tag":"User-Name","type":"*variable","value":"~*oreq.User-Name"},{"path":"*radDAReq.NAS-IP-Address","tag":"NAS-IP-Address","type":"*variable","value":"~*oreq.NAS-IP-Address"},{"path":"*radDAReq.Acct-Session-Id","tag":"Acct-Session-Id","type":"*variable","value":"~*oreq.Acct-Session-Id"},{"path":"*radDAReq.Filter-Id","tag":"Filter-Id","type":"*variable","value":"~*req.CustomFilter"}],"*dmr":[{"path":"*radDAReq.User-Name","tag":"User-Name","type":"*variable","value":"~*oreq.User-Name"},{"path":"*radDAReq.NAS-IP-Address","tag":"NAS-IP-Address","type":"*variable","value":"~*oreq.NAS-IP-Address"},{"path":"*radDAReq.Acct-Session-Id","tag":"Acct-Session-Id","type":"*variable","value":"~*oreq.Acct-Session-Id"},{"path":"*radDAReq.Reply-Message","tag":"Reply-Message","type":"*variable","value":"~*req.DisconnectCause"}],"*err":[{"mandatory":true,"path":"*rep.Session-Id","tag":"SessionId","type":"*variable","value":"~*req.Session-Id"},{"mandatory":true,"path":"*rep.Origin-Host","tag":"OriginHost","type":"*variable","value":"~*vars.OriginHost"},{"mandatory":true,"path":"*rep.Origin-Realm","tag":"OriginRealm","type":"*variable","value":"~*vars.OriginRealm"}],"*errSip":[{"mandatory":true,"path":"*rep.Request","tag":"Request","type":"*constant","value":"SIP/2.0 500 Internal Server Error"}],"*rar":[{"mandatory":true,"path":"*diamreq.Session-Id","tag":"SessionId","type":"*variable","value":"~*req.Session-Id"},{"mandatory":true,"path":"*diamreq.Origin-Host","tag":"OriginHost","type":"*variable","value":"~*req.Destination-Host"},{"mandatory":true,"path":"*diamreq.Origin-Realm","tag":"OriginRealm","type":"*variable","value":"~*req.Destination-Realm"},{"mandatory":true,"path":"*diamreq.Destination-Realm","tag":"DestinationRealm","type":"*variable","value":"~*req.Origin-Realm"},{"mandatory":true,"path":"*diamreq.Destination-Host","tag":"DestinationHost","type":"*variable","value":"~*req.Origin-Host"},{"mandatory":true,"path":"*diamreq.Auth-Application-Id","tag":"AuthApplicationId","type":"*variable","value":"~*vars.*appid"},{"path":"*diamreq.Re-Auth-Request-Type","tag":"ReAuthRequestType","type":"*constant","value":"0"}]},"thresholds":{"enabled":false,"exists_indexed_fields":[],"indexed_selects":true,"nested_fields":false,"opts":{"*profileIDs":[],"*profileIgnoreFilters":false},"prefix_indexed_fields":[],"store_interval":"","suffix_indexed_fields":[]},"tls":{"ca_certificate":"","client_certificate":"","client_key":"","server_certificate":"","server_key":"","server_name":"","server_policy":4},"trends":{"ees_conns":[],"ees_exporter_ids":[],"enabled":false,"scheduled_ids":{},"stats_conns":[],"store_interval":"","store_uncompressed_limit":0,"thresholds_conns":[]}}`
 	if err != nil {
 		t.Fatal(err)
 	}
diff --git a/config/dispatcherscfg.go b/config/dispatcherscfg.go
index 6fbd45b44..ef3c310ee 100644
--- a/config/dispatcherscfg.go
+++ b/config/dispatcherscfg.go
@@ -19,6 +19,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>
 package config
 
 import (
+	"slices"
+
 	"github.com/cgrates/cgrates/utils"
 )
 
@@ -29,6 +31,7 @@ type DispatcherSCfg struct {
 	StringIndexedFields *[]string
 	PrefixIndexedFields *[]string
 	SuffixIndexedFields *[]string
+	ExistsIndexedFields *[]string
 	AttributeSConns     []string
 	NestedFields        bool
 	AnySubsystem        bool
@@ -60,6 +63,10 @@ func (dps *DispatcherSCfg) loadFromJSONCfg(jsnCfg *DispatcherSJsonCfg) (err erro
 		copy(sif, *jsnCfg.Suffix_indexed_fields)
 		dps.SuffixIndexedFields = &sif
 	}
+	if jsnCfg.ExistsIndexedFields != nil {
+		eif := slices.Clone(*jsnCfg.ExistsIndexedFields)
+		dps.ExistsIndexedFields = &eif
+	}
 	if jsnCfg.Attributes_conns != nil {
 		dps.AttributeSConns = make([]string, len(*jsnCfg.Attributes_conns))
 		for idx, connID := range *jsnCfg.Attributes_conns {
@@ -106,6 +113,10 @@ func (dps *DispatcherSCfg) AsMapInterface() (mp map[string]any) {
 		copy(suffixIndexedFields, *dps.SuffixIndexedFields)
 		mp[utils.SuffixIndexedFieldsCfg] = suffixIndexedFields
 	}
+	if dps.ExistsIndexedFields != nil {
+		eif := slices.Clone(*dps.ExistsIndexedFields)
+		mp[utils.ExistsIndexedFieldsCfg] = eif
+	}
 	if dps.AttributeSConns != nil {
 		attributeSConns := make([]string, len(dps.AttributeSConns))
 		for i, item := range dps.AttributeSConns {
@@ -148,5 +159,9 @@ func (dps DispatcherSCfg) Clone() (cln *DispatcherSCfg) {
 		copy(idx, *dps.SuffixIndexedFields)
 		cln.SuffixIndexedFields = &idx
 	}
+	if dps.ExistsIndexedFields != nil {
+		idx := slices.Clone(*dps.ExistsIndexedFields)
+		cln.ExistsIndexedFields = &idx
+	}
 	return
 }
diff --git a/config/dispatcherscfg_test.go b/config/dispatcherscfg_test.go
index 73374e47b..092fa2924 100644
--- a/config/dispatcherscfg_test.go
+++ b/config/dispatcherscfg_test.go
@@ -32,6 +32,7 @@ func TestDispatcherSCfgloadFromJsonCfg(t *testing.T) {
 		String_indexed_fields: &[]string{"*req.prefix", "*req.indexed"},
 		Prefix_indexed_fields: &[]string{"*req.prefix", "*req.indexed", "*req.fields"},
 		Suffix_indexed_fields: &[]string{"*req.prefix", "*req.indexed", "*req.fields"},
+		ExistsIndexedFields:   &[]string{"*req.exists", "*req.indexed", "*req.fields"},
 		Attributes_conns:      &[]string{utils.MetaInternal, "*conn1"},
 		Nested_fields:         utils.BoolPointer(true),
 		Any_subsystem:         utils.BoolPointer(true),
@@ -42,6 +43,7 @@ func TestDispatcherSCfgloadFromJsonCfg(t *testing.T) {
 		StringIndexedFields: &[]string{"*req.prefix", "*req.indexed"},
 		PrefixIndexedFields: &[]string{"*req.prefix", "*req.indexed", "*req.fields"},
 		SuffixIndexedFields: &[]string{"*req.prefix", "*req.indexed", "*req.fields"},
+		ExistsIndexedFields: &[]string{"*req.exists", "*req.indexed", "*req.fields"},
 		AttributeSConns:     []string{utils.ConcatenatedKey(utils.MetaInternal, utils.MetaAttributes), "*conn1"},
 		NestedFields:        true,
 		AnySubsystem:        true,
@@ -61,6 +63,7 @@ func TestDispatcherSCfgAsMapInterface(t *testing.T) {
 			"indexed_selects":true,
 			"prefix_indexed_fields": [],
             "suffix_indexed_fields": [],
+            "exists_indexed_fields": [],
 			"nested_fields": false,
 			"attributes_conns": [],
 		},
@@ -71,6 +74,7 @@ func TestDispatcherSCfgAsMapInterface(t *testing.T) {
 		utils.IndexedSelectsCfg:      true,
 		utils.PrefixIndexedFieldsCfg: []string{},
 		utils.SuffixIndexedFieldsCfg: []string{},
+		utils.ExistsIndexedFieldsCfg: []string{},
 		utils.NestedFieldsCfg:        false,
 		utils.AttributeSConnsCfg:     []string{},
 		utils.AnySubsystemCfg:        true,
@@ -91,6 +95,7 @@ func TestDispatcherSCfgAsMapInterface1(t *testing.T) {
             "string_indexed_fields": ["*req.prefix"],
 			"prefix_indexed_fields": ["*req.prefix","*req.indexed","*req.fields"],
             "suffix_indexed_fields": ["*req.prefix"],
+            "exists_indexed_fields": ["*req.exists"],
 			"nested_fields": false,
 			"attributes_conns": ["*internal:*attributes", "*conn1"],
 			"prevent_loop": true
@@ -103,6 +108,7 @@ func TestDispatcherSCfgAsMapInterface1(t *testing.T) {
 		utils.StringIndexedFieldsCfg: []string{"*req.prefix"},
 		utils.PrefixIndexedFieldsCfg: []string{"*req.prefix", "*req.indexed", "*req.fields"},
 		utils.SuffixIndexedFieldsCfg: []string{"*req.prefix"},
+		utils.ExistsIndexedFieldsCfg: []string{"*req.exists"},
 		utils.NestedFieldsCfg:        false,
 		utils.AttributeSConnsCfg:     []string{"*internal", "*conn1"},
 		utils.AnySubsystemCfg:        true,
@@ -124,6 +130,7 @@ func TestDispatcherSCfgAsMapInterface2(t *testing.T) {
 		utils.IndexedSelectsCfg:      true,
 		utils.PrefixIndexedFieldsCfg: []string{},
 		utils.SuffixIndexedFieldsCfg: []string{},
+		utils.ExistsIndexedFieldsCfg: []string{},
 		utils.NestedFieldsCfg:        false,
 		utils.AttributeSConnsCfg:     []string{},
 		utils.AnySubsystemCfg:        true,
diff --git a/config/libconfig_json.go b/config/libconfig_json.go
index 98259d57f..fdea807e9 100644
--- a/config/libconfig_json.go
+++ b/config/libconfig_json.go
@@ -637,7 +637,8 @@ type AttributeSJsonCfg struct {
 	String_indexed_fields *[]string
 	Prefix_indexed_fields *[]string
 	Suffix_indexed_fields *[]string
-	Nested_fields         *bool // applies when indexed fields is not defined
+	ExistsIndexedFields   *[]string `json:"exists_indexed_fields"`
+	Nested_fields         *bool     // applies when indexed fields is not defined
 	Any_context           *bool
 	Opts                  *AttributesOptsJson
 }
@@ -650,7 +651,8 @@ type ChargerSJsonCfg struct {
 	String_indexed_fields *[]string
 	Prefix_indexed_fields *[]string
 	Suffix_indexed_fields *[]string
-	Nested_fields         *bool // applies when indexed fields is not defined
+	ExistsIndexedFields   *[]string `json:"exists_indexed_fields"`
+	Nested_fields         *bool     // applies when indexed fields is not defined
 }
 
 type ResourcesOptsJson struct {
@@ -668,7 +670,8 @@ type ResourceSJsonCfg struct {
 	String_indexed_fields *[]string
 	Prefix_indexed_fields *[]string
 	Suffix_indexed_fields *[]string
-	Nested_fields         *bool // applies when indexed fields is not defined
+	ExistsIndexedFields   *[]string `json:"exists_indexed_fields"`
+	Nested_fields         *bool     // applies when indexed fields is not defined
 	Opts                  *ResourcesOptsJson
 }
 
@@ -687,7 +690,8 @@ type StatServJsonCfg struct {
 	String_indexed_fields    *[]string
 	Prefix_indexed_fields    *[]string
 	Suffix_indexed_fields    *[]string
-	Nested_fields            *bool // applies when indexed fields is not defined
+	ExistsIndexedFields      *[]string `json:"exists_indexed_fields"`
+	Nested_fields            *bool     // applies when indexed fields is not defined
 	Opts                     *StatsOptsJson
 	Ees_conns                *[]string
 	Ees_exporter_ids         *[]string
@@ -728,7 +732,8 @@ type ThresholdSJsonCfg struct {
 	String_indexed_fields *[]string
 	Prefix_indexed_fields *[]string
 	Suffix_indexed_fields *[]string
-	Nested_fields         *bool // applies when indexed fields is not defined
+	ExistsIndexedFields   *[]string `json:"exists_indexed_fields"`
+	Nested_fields         *bool     // applies when indexed fields is not defined
 	Opts                  *ThresholdsOptsJson
 }
 
@@ -748,7 +753,8 @@ type RouteSJsonCfg struct {
 	String_indexed_fields *[]string
 	Prefix_indexed_fields *[]string
 	Suffix_indexed_fields *[]string
-	Nested_fields         *bool // applies when indexed fields is not defined
+	ExistsIndexedFields   *[]string `json:"exists_indexed_fields"`
+	Nested_fields         *bool     // applies when indexed fields is not defined
 	Attributes_conns      *[]string
 	Resources_conns       *[]string
 	Stats_conns           *[]string
@@ -822,7 +828,8 @@ type DispatcherSJsonCfg struct {
 	String_indexed_fields *[]string
 	Prefix_indexed_fields *[]string
 	Suffix_indexed_fields *[]string
-	Nested_fields         *bool // applies when indexed fields is not defined
+	ExistsIndexedFields   *[]string `json:"exists_indexed_fields"`
+	Nested_fields         *bool     // applies when indexed fields is not defined
 	Attributes_conns      *[]string
 	Any_subsystem         *bool
 	Prevent_loop          *bool
diff --git a/config/resourcescfg.go b/config/resourcescfg.go
index 3ab93938d..fee3ff2de 100644
--- a/config/resourcescfg.go
+++ b/config/resourcescfg.go
@@ -19,6 +19,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>
 package config
 
 import (
+	"slices"
 	"time"
 
 	"github.com/cgrates/cgrates/utils"
@@ -39,6 +40,7 @@ type ResourceSConfig struct {
 	StringIndexedFields *[]string
 	PrefixIndexedFields *[]string
 	SuffixIndexedFields *[]string
+	ExistsIndexedFields *[]string
 	NestedFields        bool
 	Opts                *ResourcesOpts
 }
@@ -103,6 +105,10 @@ func (rlcfg *ResourceSConfig) loadFromJSONCfg(jsnCfg *ResourceSJsonCfg) (err err
 		copy(sif, *jsnCfg.Suffix_indexed_fields)
 		rlcfg.SuffixIndexedFields = &sif
 	}
+	if jsnCfg.ExistsIndexedFields != nil {
+		eif := slices.Clone(*jsnCfg.ExistsIndexedFields)
+		rlcfg.ExistsIndexedFields = &eif
+	}
 	if jsnCfg.Nested_fields != nil {
 		rlcfg.NestedFields = *jsnCfg.Nested_fields
 	}
@@ -153,6 +159,10 @@ func (rlcfg *ResourceSConfig) AsMapInterface() (initialMP map[string]any) {
 		copy(suffixIndexedFields, *rlcfg.SuffixIndexedFields)
 		initialMP[utils.SuffixIndexedFieldsCfg] = suffixIndexedFields
 	}
+	if rlcfg.ExistsIndexedFields != nil {
+		eif := slices.Clone(*rlcfg.ExistsIndexedFields)
+		initialMP[utils.ExistsIndexedFieldsCfg] = eif
+	}
 	if rlcfg.StoreInterval != 0 {
 		initialMP[utils.StoreIntervalCfg] = rlcfg.StoreInterval.String()
 	}
@@ -200,5 +210,9 @@ func (rlcfg ResourceSConfig) Clone() (cln *ResourceSConfig) {
 		copy(idx, *rlcfg.SuffixIndexedFields)
 		cln.SuffixIndexedFields = &idx
 	}
+	if rlcfg.ExistsIndexedFields != nil {
+		idx := slices.Clone(*rlcfg.ExistsIndexedFields)
+		cln.ExistsIndexedFields = &idx
+	}
 	return
 }
diff --git a/config/resourcescfg_test.go b/config/resourcescfg_test.go
index da0a7de7c..95c9bf741 100644
--- a/config/resourcescfg_test.go
+++ b/config/resourcescfg_test.go
@@ -34,6 +34,7 @@ func TestResourceSConfigloadFromJsonCfgCase1(t *testing.T) {
 		String_indexed_fields: &[]string{"*req.index1"},
 		Prefix_indexed_fields: &[]string{"*req.index1"},
 		Suffix_indexed_fields: &[]string{"*req.index1"},
+		ExistsIndexedFields:   &[]string{"*req.index1"},
 		Nested_fields:         utils.BoolPointer(true),
 	}
 	expected := &ResourceSConfig{
@@ -44,6 +45,7 @@ func TestResourceSConfigloadFromJsonCfgCase1(t *testing.T) {
 		StringIndexedFields: &[]string{"*req.index1"},
 		PrefixIndexedFields: &[]string{"*req.index1"},
 		SuffixIndexedFields: &[]string{"*req.index1"},
+		ExistsIndexedFields: &[]string{"*req.index1"},
 		NestedFields:        true,
 		Opts: &ResourcesOpts{
 			Units: 1,
@@ -96,6 +98,7 @@ func TestResourceSConfigAsMapInterface(t *testing.T) {
 		utils.IndexedSelectsCfg:      true,
 		utils.PrefixIndexedFieldsCfg: []string{},
 		utils.SuffixIndexedFieldsCfg: []string{},
+		utils.ExistsIndexedFieldsCfg: []string{},
 		utils.NestedFieldsCfg:        false,
 		utils.OptsCfg: map[string]any{
 			utils.MetaUnitsCfg:   1.,
@@ -119,6 +122,7 @@ func TestResourceSConfigAsMapInterface1(t *testing.T) {
             "string_indexed_fields": ["*req.index1"],
 			"prefix_indexed_fields": ["*req.prefix_indexed_fields1","*req.prefix_indexed_fields2"],
             "suffix_indexed_fields": ["*req.prefix_indexed_fields1"],
+            "exists_indexed_fields": ["*req.exists_indexed_field"],
 			"nested_fields": true,	
 			"opts":{
 				"*usageTTL":"1"
@@ -134,6 +138,7 @@ func TestResourceSConfigAsMapInterface1(t *testing.T) {
 		utils.StringIndexedFieldsCfg: []string{"*req.index1"},
 		utils.PrefixIndexedFieldsCfg: []string{"*req.prefix_indexed_fields1", "*req.prefix_indexed_fields2"},
 		utils.SuffixIndexedFieldsCfg: []string{"*req.prefix_indexed_fields1"},
+		utils.ExistsIndexedFieldsCfg: []string{"*req.exists_indexed_field"},
 		utils.NestedFieldsCfg:        true,
 		utils.OptsCfg: map[string]any{
 			utils.MetaUnitsCfg:    1.,
diff --git a/config/routescfg.go b/config/routescfg.go
index b7bf11b9b..1f5018567 100644
--- a/config/routescfg.go
+++ b/config/routescfg.go
@@ -19,6 +19,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>
 package config
 
 import (
+	"slices"
+
 	"github.com/cgrates/cgrates/utils"
 )
 
@@ -38,6 +40,7 @@ type RouteSCfg struct {
 	StringIndexedFields *[]string
 	PrefixIndexedFields *[]string
 	SuffixIndexedFields *[]string
+	ExistsIndexedFields *[]string
 	AttributeSConns     []string
 	ResourceSConns      []string
 	StatSConns          []string
@@ -96,6 +99,10 @@ func (rts *RouteSCfg) loadFromJSONCfg(jsnCfg *RouteSJsonCfg) (err error) {
 		copy(sif, *jsnCfg.Suffix_indexed_fields)
 		rts.SuffixIndexedFields = &sif
 	}
+	if jsnCfg.ExistsIndexedFields != nil {
+		eif := slices.Clone(*jsnCfg.ExistsIndexedFields)
+		rts.ExistsIndexedFields = &eif
+	}
 	if jsnCfg.Attributes_conns != nil {
 		rts.AttributeSConns = make([]string, len(*jsnCfg.Attributes_conns))
 		for idx, conn := range *jsnCfg.Attributes_conns {
@@ -188,6 +195,10 @@ func (rts *RouteSCfg) AsMapInterface() (initialMP map[string]any) {
 		copy(suffixIndexedFieldsCfg, *rts.SuffixIndexedFields)
 		initialMP[utils.SuffixIndexedFieldsCfg] = suffixIndexedFieldsCfg
 	}
+	if rts.ExistsIndexedFields != nil {
+		eif := slices.Clone(*rts.ExistsIndexedFields)
+		initialMP[utils.ExistsIndexedFieldsCfg] = eif
+	}
 	if rts.AttributeSConns != nil {
 		attributeSConns := make([]string, len(rts.AttributeSConns))
 		for i, item := range rts.AttributeSConns {
@@ -292,5 +303,9 @@ func (rts RouteSCfg) Clone() (cln *RouteSCfg) {
 		copy(idx, *rts.SuffixIndexedFields)
 		cln.SuffixIndexedFields = &idx
 	}
+	if rts.ExistsIndexedFields != nil {
+		idx := slices.Clone(*rts.ExistsIndexedFields)
+		cln.ExistsIndexedFields = &idx
+	}
 	return
 }
diff --git a/config/routescfg_test.go b/config/routescfg_test.go
index b6363a3af..5c6ff2088 100644
--- a/config/routescfg_test.go
+++ b/config/routescfg_test.go
@@ -31,6 +31,7 @@ func TestRouteSCfgloadFromJsonCfg(t *testing.T) {
 		String_indexed_fields: &[]string{"*req.index1"},
 		Prefix_indexed_fields: &[]string{"*req.index1", "*req.index2"},
 		Suffix_indexed_fields: &[]string{"*req.index1", "*req.index2"},
+		ExistsIndexedFields:   &[]string{"*req.index1", "*req.index2"},
 		Attributes_conns:      &[]string{utils.MetaInternal, "conn1"},
 		Resources_conns:       &[]string{utils.MetaInternal, "conn1"},
 		Stats_conns:           &[]string{utils.MetaInternal, "conn1"},
@@ -50,6 +51,7 @@ func TestRouteSCfgloadFromJsonCfg(t *testing.T) {
 		StringIndexedFields: &[]string{"*req.index1"},
 		PrefixIndexedFields: &[]string{"*req.index1", "*req.index2"},
 		SuffixIndexedFields: &[]string{"*req.index1", "*req.index2"},
+		ExistsIndexedFields: &[]string{"*req.index1", "*req.index2"},
 		AttributeSConns:     []string{utils.ConcatenatedKey(utils.MetaInternal, utils.MetaAttributes), "conn1"},
 		ResourceSConns:      []string{utils.ConcatenatedKey(utils.MetaInternal, utils.MetaResources), "conn1"},
 		StatSConns:          []string{utils.ConcatenatedKey(utils.MetaInternal, utils.MetaStats), "conn1"},
@@ -124,6 +126,7 @@ func TestRouteSCfgAsMapInterface1(t *testing.T) {
             "string_indexed_fields": ["*req.string"],
 			"prefix_indexed_fields": ["*req.prefix","*req.indexed","*req.fields"],
             "suffix_indexed_fields": ["*req.prefix","*req.indexed"],
+            "exists_indexed_fields": ["*req.exists","*req.indexed"],
 			"nested_fields": true,
 			"attributes_conns": ["*internal:*attributes", "conn1"],
 			"resources_conns": ["*internal:*resources", "conn1"],
@@ -138,6 +141,7 @@ func TestRouteSCfgAsMapInterface1(t *testing.T) {
 		utils.StringIndexedFieldsCfg: []string{"*req.string"},
 		utils.PrefixIndexedFieldsCfg: []string{"*req.prefix", "*req.indexed", "*req.fields"},
 		utils.SuffixIndexedFieldsCfg: []string{"*req.prefix", "*req.indexed"},
+		utils.ExistsIndexedFieldsCfg: []string{"*req.exists", "*req.indexed"},
 		utils.NestedFieldsCfg:        true,
 		utils.AttributeSConnsCfg:     []string{utils.MetaInternal, "conn1"},
 		utils.ResourceSConnsCfg:      []string{utils.MetaInternal, "conn1"},
diff --git a/config/statscfg.go b/config/statscfg.go
index 0a7f27186..f5af406cb 100644
--- a/config/statscfg.go
+++ b/config/statscfg.go
@@ -40,6 +40,7 @@ type StatSCfg struct {
 	StringIndexedFields    *[]string
 	PrefixIndexedFields    *[]string
 	SuffixIndexedFields    *[]string
+	ExistsIndexedFields    *[]string
 	NestedFields           bool
 	Opts                   *StatsOpts
 	EEsConns               []string
@@ -114,6 +115,10 @@ func (st *StatSCfg) loadFromJSONCfg(jsnCfg *StatServJsonCfg) (err error) {
 		copy(sif, *jsnCfg.Suffix_indexed_fields)
 		st.SuffixIndexedFields = &sif
 	}
+	if jsnCfg.ExistsIndexedFields != nil {
+		eif := slices.Clone(*jsnCfg.ExistsIndexedFields)
+		st.ExistsIndexedFields = &eif
+	}
 	if jsnCfg.Nested_fields != nil {
 		st.NestedFields = *jsnCfg.Nested_fields
 	}
@@ -164,6 +169,10 @@ func (st *StatSCfg) AsMapInterface() (initialMP map[string]any) {
 		initialMP[utils.SuffixIndexedFieldsCfg] = suffixIndexedFields
 
 	}
+	if st.ExistsIndexedFields != nil {
+		eif := slices.Clone(*st.ExistsIndexedFields)
+		initialMP[utils.ExistsIndexedFieldsCfg] = eif
+	}
 	if st.ThresholdSConns != nil {
 		thresholdSConns := make([]string, len(st.ThresholdSConns))
 		for i, item := range st.ThresholdSConns {
@@ -231,5 +240,9 @@ func (st StatSCfg) Clone() (cln *StatSCfg) {
 		copy(idx, *st.SuffixIndexedFields)
 		cln.SuffixIndexedFields = &idx
 	}
+	if st.ExistsIndexedFields != nil {
+		idx := slices.Clone(*st.ExistsIndexedFields)
+		cln.ExistsIndexedFields = &idx
+	}
 	return
 }
diff --git a/config/statscfg_test.go b/config/statscfg_test.go
index d3d94738c..c1bb4d1b3 100644
--- a/config/statscfg_test.go
+++ b/config/statscfg_test.go
@@ -34,6 +34,7 @@ func TestStatSCfgloadFromJsonCfgCase1(t *testing.T) {
 		String_indexed_fields:    &[]string{"*req.string"},
 		Prefix_indexed_fields:    &[]string{"*req.index1", "*req.index2"},
 		Suffix_indexed_fields:    &[]string{"*req.index1", "*req.index2"},
+		ExistsIndexedFields:      &[]string{"*req.index1", "*req.index2"},
 		Nested_fields:            utils.BoolPointer(true),
 		Ees_conns:                &[]string{utils.MetaInternal, "*conn1"},
 		Ees_exporter_ids:         &[]string{"exporterID"},
@@ -47,6 +48,7 @@ func TestStatSCfgloadFromJsonCfgCase1(t *testing.T) {
 		StringIndexedFields:    &[]string{"*req.string"},
 		PrefixIndexedFields:    &[]string{"*req.index1", "*req.index2"},
 		SuffixIndexedFields:    &[]string{"*req.index1", "*req.index2"},
+		ExistsIndexedFields:    &[]string{"*req.index1", "*req.index2"},
 		NestedFields:           true,
 		Opts: &StatsOpts{
 			ProfileIDs: []string{},
@@ -90,6 +92,7 @@ func TestStatSCfgAsMapInterface(t *testing.T) {
 		utils.IndexedSelectsCfg:         true,
 		utils.PrefixIndexedFieldsCfg:    []string{},
 		utils.SuffixIndexedFieldsCfg:    []string{},
+		utils.ExistsIndexedFieldsCfg:    []string{},
 		utils.NestedFieldsCfg:           false,
 		utils.OptsCfg: map[string]any{
 			utils.MetaProfileIDs:              []string{},
@@ -116,6 +119,7 @@ func TestStatSCfgAsMapInterface1(t *testing.T) {
             "string_indexed_fields": ["*req.string"],
 			"prefix_indexed_fields": ["*req.prefix_indexed_fields1","*req.prefix_indexed_fields2"],
             "suffix_indexed_fields":["*req.suffix_indexed_fields"],
+            "exists_indexed_fields":["*req.exists_indexed_field"],
 			"nested_fields": true,
 			"ees_conns": ["*internal:*ees", "*conn1"],
 			"ees_exporter_ids":["exporterID"],
@@ -130,6 +134,7 @@ func TestStatSCfgAsMapInterface1(t *testing.T) {
 		utils.StringIndexedFieldsCfg:    []string{"*req.string"},
 		utils.PrefixIndexedFieldsCfg:    []string{"*req.prefix_indexed_fields1", "*req.prefix_indexed_fields2"},
 		utils.SuffixIndexedFieldsCfg:    []string{"*req.suffix_indexed_fields"},
+		utils.ExistsIndexedFieldsCfg:    []string{"*req.exists_indexed_field"},
 		utils.NestedFieldsCfg:           true,
 		utils.OptsCfg: map[string]any{
 			utils.MetaProfileIDs:              []string{},
diff --git a/config/thresholdscfg.go b/config/thresholdscfg.go
index 59cc50b08..9b115d5f9 100644
--- a/config/thresholdscfg.go
+++ b/config/thresholdscfg.go
@@ -39,6 +39,7 @@ type ThresholdSCfg struct {
 	StringIndexedFields *[]string
 	PrefixIndexedFields *[]string
 	SuffixIndexedFields *[]string
+	ExistsIndexedFields *[]string
 	NestedFields        bool
 	Opts                *ThresholdsOpts
 }
@@ -95,6 +96,10 @@ func (t *ThresholdSCfg) loadFromJSONCfg(jsnCfg *ThresholdSJsonCfg) (err error) {
 		copy(sif, *jsnCfg.Suffix_indexed_fields)
 		t.SuffixIndexedFields = &sif
 	}
+	if jsnCfg.ExistsIndexedFields != nil {
+		eif := slices.Clone(*jsnCfg.ExistsIndexedFields)
+		t.ExistsIndexedFields = &eif
+	}
 	if jsnCfg.Nested_fields != nil {
 		t.NestedFields = *jsnCfg.Nested_fields
 	}
@@ -145,6 +150,10 @@ func (t *ThresholdSCfg) AsMapInterface() (initialMP map[string]any) {
 		copy(suffixIndexedFields, *t.SuffixIndexedFields)
 		initialMP[utils.SuffixIndexedFieldsCfg] = suffixIndexedFields
 	}
+	if t.ExistsIndexedFields != nil {
+		eif := slices.Clone(*t.ExistsIndexedFields)
+		initialMP[utils.ExistsIndexedFieldsCfg] = eif
+	}
 	return
 }
 
@@ -183,5 +192,9 @@ func (t ThresholdSCfg) Clone() (cln *ThresholdSCfg) {
 		copy(idx, *t.SuffixIndexedFields)
 		cln.SuffixIndexedFields = &idx
 	}
+	if t.ExistsIndexedFields != nil {
+		idx := slices.Clone(*t.ExistsIndexedFields)
+		cln.ExistsIndexedFields = &idx
+	}
 	return
 }
diff --git a/config/thresholdscfg_test.go b/config/thresholdscfg_test.go
index f4891f653..e512888da 100644
--- a/config/thresholdscfg_test.go
+++ b/config/thresholdscfg_test.go
@@ -32,6 +32,7 @@ func TestThresholdSCfgloadFromJsonCfgCase1(t *testing.T) {
 		String_indexed_fields: &[]string{"*req.prefix"},
 		Prefix_indexed_fields: &[]string{"*req.index1"},
 		Suffix_indexed_fields: &[]string{"*req.index1"},
+		ExistsIndexedFields:   &[]string{"*req.index1"},
 		Nested_fields:         utils.BoolPointer(true),
 		Opts: &ThresholdsOptsJson{
 			ProfileIDs:           &[]string{},
@@ -45,6 +46,7 @@ func TestThresholdSCfgloadFromJsonCfgCase1(t *testing.T) {
 		StringIndexedFields: &[]string{"*req.prefix"},
 		PrefixIndexedFields: &[]string{"*req.index1"},
 		SuffixIndexedFields: &[]string{"*req.index1"},
+		ExistsIndexedFields: &[]string{"*req.index1"},
 		NestedFields:        true,
 		Opts: &ThresholdsOpts{
 			ProfileIDs:           []string{},
@@ -86,6 +88,7 @@ func TestThresholdSCfgAsMapInterfaceCase1(t *testing.T) {
 		utils.IndexedSelectsCfg:      true,
 		utils.PrefixIndexedFieldsCfg: []string{},
 		utils.SuffixIndexedFieldsCfg: []string{},
+		utils.ExistsIndexedFieldsCfg: []string{},
 		utils.NestedFieldsCfg:        false,
 		utils.OptsCfg: map[string]any{
 			utils.MetaProfileIDs:              []string{},
@@ -108,6 +111,7 @@ func TestThresholdSCfgAsMapInterfaceCase2(t *testing.T) {
             "string_indexed_fields": ["*req.string"],
 			"prefix_indexed_fields": ["*req.prefix","*req.indexed","*req.fields"],	
             "suffix_indexed_fields": ["*req.suffix_indexed_fields1", "*req.suffix_indexed_fields2"],		
+            "exists_indexed_fields": ["*req.exists_indexed_field"],		
 			"nested_fields": true,					
 		},		
 }`
@@ -118,6 +122,7 @@ func TestThresholdSCfgAsMapInterfaceCase2(t *testing.T) {
 		utils.StringIndexedFieldsCfg: []string{"*req.string"},
 		utils.PrefixIndexedFieldsCfg: []string{"*req.prefix", "*req.indexed", "*req.fields"},
 		utils.SuffixIndexedFieldsCfg: []string{"*req.suffix_indexed_fields1", "*req.suffix_indexed_fields2"},
+		utils.ExistsIndexedFieldsCfg: []string{"*req.exists_indexed_field"},
 		utils.NestedFieldsCfg:        true,
 		utils.OptsCfg: map[string]any{
 			utils.MetaProfileIDs:              []string{},
diff --git a/dispatchers/dispatchers.go b/dispatchers/dispatchers.go
index 246657498..f997f6986 100644
--- a/dispatchers/dispatchers.go
+++ b/dispatchers/dispatchers.go
@@ -132,6 +132,7 @@ func (dS *DispatcherService) dispatcherProfilesForEvent(tnt string, ev *utils.CG
 		dS.cfg.DispatcherSCfg().StringIndexedFields,
 		dS.cfg.DispatcherSCfg().PrefixIndexedFields,
 		dS.cfg.DispatcherSCfg().SuffixIndexedFields,
+		dS.cfg.DispatcherSCfg().ExistsIndexedFields,
 		dS.dm, utils.CacheDispatcherFilterIndexes, idxKeyPrfx,
 		dS.cfg.DispatcherSCfg().IndexedSelects,
 		dS.cfg.DispatcherSCfg().NestedFields,
@@ -146,6 +147,7 @@ func (dS *DispatcherService) dispatcherProfilesForEvent(tnt string, ev *utils.CG
 			dS.cfg.DispatcherSCfg().StringIndexedFields,
 			dS.cfg.DispatcherSCfg().PrefixIndexedFields,
 			dS.cfg.DispatcherSCfg().SuffixIndexedFields,
+			dS.cfg.DispatcherSCfg().ExistsIndexedFields,
 			dS.dm, utils.CacheDispatcherFilterIndexes, anyIdxPrfx,
 			dS.cfg.DispatcherSCfg().IndexedSelects,
 			dS.cfg.DispatcherSCfg().NestedFields,
diff --git a/engine/attributes.go b/engine/attributes.go
index ca11ebdcf..f5d07e2af 100644
--- a/engine/attributes.go
+++ b/engine/attributes.go
@@ -72,6 +72,7 @@ func (alS *AttributeService) attributeProfileForEvent(tnt string, ctx *string, a
 			alS.cgrcfg.AttributeSCfg().StringIndexedFields,
 			alS.cgrcfg.AttributeSCfg().PrefixIndexedFields,
 			alS.cgrcfg.AttributeSCfg().SuffixIndexedFields,
+			alS.cgrcfg.AttributeSCfg().ExistsIndexedFields,
 			alS.dm, utils.CacheAttributeFilterIndexes, attrIdxKey,
 			alS.cgrcfg.AttributeSCfg().IndexedSelects,
 			alS.cgrcfg.AttributeSCfg().NestedFields,
@@ -86,6 +87,7 @@ func (alS *AttributeService) attributeProfileForEvent(tnt string, ctx *string, a
 				alS.cgrcfg.AttributeSCfg().StringIndexedFields,
 				alS.cgrcfg.AttributeSCfg().PrefixIndexedFields,
 				alS.cgrcfg.AttributeSCfg().SuffixIndexedFields,
+				alS.cgrcfg.AttributeSCfg().ExistsIndexedFields,
 				alS.dm, utils.CacheAttributeFilterIndexes,
 				utils.ConcatenatedKey(tnt, utils.MetaAny),
 				alS.cgrcfg.AttributeSCfg().IndexedSelects,
diff --git a/engine/chargers.go b/engine/chargers.go
index 3f21351df..e1da4a89f 100644
--- a/engine/chargers.go
+++ b/engine/chargers.go
@@ -56,6 +56,7 @@ func (cS *ChargerService) matchingChargerProfilesForEvent(tnt string, cgrEv *uti
 		cS.cfg.ChargerSCfg().StringIndexedFields,
 		cS.cfg.ChargerSCfg().PrefixIndexedFields,
 		cS.cfg.ChargerSCfg().SuffixIndexedFields,
+		cS.cfg.ChargerSCfg().ExistsIndexedFields,
 		cS.dm, utils.CacheChargerFilterIndexes, tnt,
 		cS.cfg.ChargerSCfg().IndexedSelects,
 		cS.cfg.ChargerSCfg().NestedFields,
diff --git a/engine/filterhelpers.go b/engine/filterhelpers.go
index 864961279..8399fe608 100644
--- a/engine/filterhelpers.go
+++ b/engine/filterhelpers.go
@@ -36,11 +36,11 @@ import (
 // MatchingItemIDsForEvent returns the list of item IDs matching fieldName/fieldValue for an event
 // fieldIDs limits the fields which are checked against indexes
 // helper on top of dataDB.GetIndexes, adding utils.MetaAny to list of fields queried
-func MatchingItemIDsForEvent(ev utils.MapStorage, stringFldIDs, prefixFldIDs, suffixFldIDs *[]string,
+func MatchingItemIDsForEvent(ev utils.MapStorage, stringFldIDs, prefixFldIDs, suffixFldIDs, existsFldIDs *[]string,
 	dm *DataManager, cacheID, itemIDPrefix string, indexedSelects, nestedFields bool) (itemIDs utils.StringSet, err error) {
 	itemIDs = make(utils.StringSet)
 	var allFieldIDs []string
-	if indexedSelects && (stringFldIDs == nil || prefixFldIDs == nil || suffixFldIDs == nil) {
+	if indexedSelects && (stringFldIDs == nil || prefixFldIDs == nil || suffixFldIDs == nil || existsFldIDs == nil) {
 		allFieldIDs = ev.GetKeys(nestedFields, 2, utils.EmptyString)
 	}
 	// Guard will protect the function with automatic locking
@@ -58,13 +58,32 @@ func MatchingItemIDsForEvent(ev utils.MapStorage, stringFldIDs, prefixFldIDs, su
 			itemIDs = utils.NewStringSet(sliceIDs)
 			return
 		}
-		stringFieldVals := map[string]string{utils.MetaAny: utils.MetaAny}                                 // cache here field string values, start with default one
-		filterIndexTypes := []string{utils.MetaString, utils.MetaPrefix, utils.MetaSuffix, utils.MetaNone} // the MetaNone is used for all items that do not have filters
-		for i, fieldIDs := range []*[]string{stringFldIDs, prefixFldIDs, suffixFldIDs, {utils.MetaAny}} {  // same routine for both string and prefix filter types
+		stringFieldVals := map[string]string{utils.MetaAny: utils.MetaAny}                                                   // cache here field string values, start with default one
+		filterIndexTypes := []string{utils.MetaString, utils.MetaPrefix, utils.MetaSuffix, utils.MetaExists, utils.MetaNone} // the MetaNone is used for all items that do not have filters
+		for i, fieldIDs := range []*[]string{stringFldIDs, prefixFldIDs, suffixFldIDs, existsFldIDs, {utils.MetaAny}} {      // same routine for both string and prefix filter types
 			if fieldIDs == nil {
 				fieldIDs = &allFieldIDs
 			}
 			for _, fldName := range *fieldIDs {
+				var dbItemIDs utils.StringSet // list of items matched in DB
+				if filterIndexTypes[i] == utils.MetaExists {
+					var dbIndexes map[string]utils.StringSet // list of items matched in DB
+					key := utils.ConcatenatedKey(filterIndexTypes[i], fldName)
+					if dbIndexes, err = dm.GetIndexes(cacheID, itemIDPrefix, key, true, true); err != nil {
+						if err == utils.ErrNotFound {
+							err = nil
+							continue
+						}
+						return
+					}
+					dbItemIDs = dbIndexes[key]
+					for itemID := range dbItemIDs {
+						if _, hasIt := itemIDs[itemID]; !hasIt { // Add it to list if not already there
+							itemIDs[itemID] = dbItemIDs[itemID]
+						}
+					}
+					continue // no need to look at values for *exists indexes
+				}
 				var fieldValIf any
 				fieldValIf, err = ev.FieldAsInterface(utils.SplitPath(fldName, utils.NestingSep[0], -1))
 				if err != nil && filterIndexTypes[i] != utils.MetaNone {
@@ -81,7 +100,6 @@ func MatchingItemIDsForEvent(ev utils.MapStorage, stringFldIDs, prefixFldIDs, su
 				} else if filterIndexTypes[i] == utils.MetaSuffix {
 					fldVals = utils.SplitSuffix(fldVal) // all suffix till first digit
 				}
-				var dbItemIDs utils.StringSet // list of items matched in DB
 				for _, val := range fldVals {
 					var dbIndexes map[string]utils.StringSet // list of items matched in DB
 					key := utils.ConcatenatedKey(filterIndexTypes[i], fldName, val)
diff --git a/engine/libindex.go b/engine/libindex.go
index 5b2d82f3f..440b865b5 100644
--- a/engine/libindex.go
+++ b/engine/libindex.go
@@ -28,7 +28,7 @@ import (
 )
 
 var (
-	FilterIndexTypes = utils.NewStringSet([]string{utils.MetaPrefix, utils.MetaString, utils.MetaSuffix})
+	FilterIndexTypes = utils.NewStringSet([]string{utils.MetaPrefix, utils.MetaString, utils.MetaSuffix, utils.MetaExists})
 	// Element or values of a filter that starts with one of this should not be indexed
 	ToNotBeIndexed = []string{
 		utils.DynamicDataPrefix + utils.MetaAccounts,
@@ -86,6 +86,23 @@ func newFilterIndex(dm *DataManager, idxItmType, tnt, ctx, itemID string, filter
 				continue
 			}
 			isDyn := strings.HasPrefix(flt.Element, utils.DynamicDataPrefix)
+			if isDyn && flt.Type == utils.MetaExists {
+				idxKey := utils.ConcatenatedKey(flt.Type, flt.Element[1:])
+				var rcvIndx map[string]utils.StringSet
+				// only read from cache in case if we do not find the index to not cache the negative response
+				if rcvIndx, err = dm.GetIndexes(idxItmType, tntCtx,
+					idxKey, true, false); err != nil {
+					if err != utils.ErrNotFound {
+						return
+					}
+					err = nil
+					indexes[idxKey] = make(utils.StringSet) // create an empty index if is not found in DB in case we add them later
+					continue
+				}
+				for idxKey, idx := range rcvIndx { // parse the received indexes
+					indexes[idxKey] = idx
+				}
+			}
 			for _, fldVal := range flt.Values {
 				if IsDynamicDPPath(fldVal) {
 					continue
diff --git a/engine/libindex_test.go b/engine/libindex_test.go
index 53c7caccc..2f2286107 100644
--- a/engine/libindex_test.go
+++ b/engine/libindex_test.go
@@ -268,6 +268,14 @@ func TestLibIndex_newFilterIndex(t *testing.T) {
 	}
 
 	wantIndexes := map[string]utils.StringSet{
+		"*exists:*req.Field1": {
+			"ATTR_1": {},
+			"ATTR_3": {},
+		},
+		"*exists:*req.Field2": {
+			"ATTR_2": {},
+			"ATTR_3": {},
+		},
 		"*prefix:*req.Field1:val": {
 			"ATTR_1": {},
 			"ATTR_3": {},
@@ -347,7 +355,7 @@ func TestLibIndex_newFilterIndex(t *testing.T) {
 		{
 			name:       "unindexable filter",
 			idxItmType: utils.CacheAttributeFilterIndexes,
-			filterIDs:  []string{"*exists:~*req.Field1:"},
+			filterIDs:  []string{"*notstring:~*req.Field1:val2"},
 			want:       make(map[string]utils.StringSet),
 		},
 		{
@@ -454,6 +462,14 @@ func TestLibIndex_newFilterIndex(t *testing.T) {
 				"*suffix:~*req.Field1:1",
 			},
 			want: map[string]utils.StringSet{
+				"*exists:*req.Field1": {
+					"ATTR_1": {},
+					"ATTR_3": {},
+				},
+				"*exists:*req.Field2": {
+					"ATTR_2": {},
+					"ATTR_3": {},
+				},
 				"*prefix:*req.Field1:val": {
 					"ATTR_1": {},
 					"ATTR_3": {},
@@ -494,6 +510,14 @@ func TestLibIndex_newFilterIndex(t *testing.T) {
 				"*notstring:~*req.Field2:val1",
 			},
 			want: map[string]utils.StringSet{
+				"*exists:*req.Field1": {
+					"ATTR_1": {},
+					"ATTR_3": {},
+				},
+				"*exists:*req.Field2": {
+					"ATTR_2": {},
+					"ATTR_3": {},
+				},
 				"*prefix:*req.Field1:val": {
 					"ATTR_1": {},
 					"ATTR_3": {},
@@ -536,6 +560,14 @@ func TestLibIndex_newFilterIndex(t *testing.T) {
 				"*string:~*req.Field5:val5",
 			},
 			want: map[string]utils.StringSet{
+				"*exists:*req.Field1": {
+					"ATTR_1": {},
+					"ATTR_3": {},
+				},
+				"*exists:*req.Field2": {
+					"ATTR_2": {},
+					"ATTR_3": {},
+				},
 				"*prefix:*req.Field1:val": {
 					"ATTR_1": {},
 					"ATTR_3": {},
@@ -570,15 +602,15 @@ func TestLibIndex_newFilterIndex(t *testing.T) {
 			got, gotErr := newFilterIndex(dm, tt.idxItmType, tt.tnt, tt.ctx, tt.itemID, tt.filterIDs, tt.newFlt)
 			if gotErr != nil {
 				if !tt.wantErr {
-					t.Errorf("prepareFilterIndexMap() failed: %v", gotErr)
+					t.Errorf("newFilterIndex() failed: %v", gotErr)
 				}
 				return
 			}
 			if tt.wantErr {
-				t.Fatal("prepareFilterIndexMap() succeeded unexpectedly")
+				t.Fatal("newFilterIndex() succeeded unexpectedly")
 			}
 			if !reflect.DeepEqual(got, tt.want) {
-				t.Errorf("prepareFilterIndexMap() = %s, want %s", utils.ToJSON(got), utils.ToJSON(tt.want))
+				t.Errorf("newFilterIndex() = %s, want %s", utils.ToJSON(got), utils.ToJSON(tt.want))
 			}
 		})
 	}
diff --git a/engine/resources.go b/engine/resources.go
index 9f736e7a5..9f6d8a754 100644
--- a/engine/resources.go
+++ b/engine/resources.go
@@ -659,6 +659,7 @@ func (rS *ResourceService) matchingResourcesForEvent(tnt string, ev *utils.CGREv
 			rS.cgrcfg.ResourceSCfg().StringIndexedFields,
 			rS.cgrcfg.ResourceSCfg().PrefixIndexedFields,
 			rS.cgrcfg.ResourceSCfg().SuffixIndexedFields,
+			rS.cgrcfg.ResourceSCfg().ExistsIndexedFields,
 			rS.dm, utils.CacheResourceFilterIndexes, tnt,
 			rS.cgrcfg.ResourceSCfg().IndexedSelects,
 			rS.cgrcfg.ResourceSCfg().NestedFields,
diff --git a/engine/routes.go b/engine/routes.go
index 6b236e8f8..f9d250693 100644
--- a/engine/routes.go
+++ b/engine/routes.go
@@ -230,6 +230,7 @@ func (rpS *RouteService) matchingRouteProfilesForEvent(tnt string, ev *utils.CGR
 		rpS.cgrcfg.RouteSCfg().StringIndexedFields,
 		rpS.cgrcfg.RouteSCfg().PrefixIndexedFields,
 		rpS.cgrcfg.RouteSCfg().SuffixIndexedFields,
+		rpS.cgrcfg.RouteSCfg().ExistsIndexedFields,
 		rpS.dm, utils.CacheRouteFilterIndexes, tnt,
 		rpS.cgrcfg.RouteSCfg().IndexedSelects,
 		rpS.cgrcfg.RouteSCfg().NestedFields,
diff --git a/engine/stats.go b/engine/stats.go
index 49bdb6c89..02a4e401a 100644
--- a/engine/stats.go
+++ b/engine/stats.go
@@ -165,6 +165,7 @@ func (sS *StatService) matchingStatQueuesForEvent(tnt string, statsIDs []string,
 			sS.cgrcfg.StatSCfg().StringIndexedFields,
 			sS.cgrcfg.StatSCfg().PrefixIndexedFields,
 			sS.cgrcfg.StatSCfg().SuffixIndexedFields,
+			sS.cgrcfg.StatSCfg().ExistsIndexedFields,
 			sS.dm, utils.CacheStatFilterIndexes, tnt,
 			sS.cgrcfg.StatSCfg().IndexedSelects,
 			sS.cgrcfg.StatSCfg().NestedFields,
diff --git a/engine/thresholds.go b/engine/thresholds.go
index 61ce5b969..8ec0d5b74 100644
--- a/engine/thresholds.go
+++ b/engine/thresholds.go
@@ -411,6 +411,7 @@ func (tS *ThresholdService) matchingThresholdsForEvent(tnt string, args *utils.C
 			tS.cgrcfg.ThresholdSCfg().StringIndexedFields,
 			tS.cgrcfg.ThresholdSCfg().PrefixIndexedFields,
 			tS.cgrcfg.ThresholdSCfg().SuffixIndexedFields,
+			tS.cgrcfg.ThresholdSCfg().ExistsIndexedFields,
 			tS.dm, utils.CacheThresholdFilterIndexes, tnt,
 			tS.cgrcfg.ThresholdSCfg().IndexedSelects,
 			tS.cgrcfg.ThresholdSCfg().NestedFields,
diff --git a/engine/z_filterhelpers_test.go b/engine/z_filterhelpers_test.go
index ae0d68a19..aaa196bd8 100644
--- a/engine/z_filterhelpers_test.go
+++ b/engine/z_filterhelpers_test.go
@@ -103,7 +103,7 @@ func TestFilterMatchingItemIDsForEvent(t *testing.T) {
 		utils.AnswerTime: time.Date(2014, 7, 14, 14, 30, 0, 0, time.UTC),
 		"Field":          "profile",
 	}}
-	aPrflIDs, err := MatchingItemIDsForEvent(matchEV, nil, nil, nil,
+	aPrflIDs, err := MatchingItemIDsForEvent(matchEV, nil, nil, nil, nil,
 		dmMatch, utils.CacheAttributeFilterIndexes, tntCtx, true, false)
 	if err != nil {
 		t.Errorf("Error: %+v", err)
@@ -116,7 +116,7 @@ func TestFilterMatchingItemIDsForEvent(t *testing.T) {
 	matchEV = utils.MapStorage{utils.MetaReq: map[string]any{
 		"Field": "profilePrefix",
 	}}
-	aPrflIDs, err = MatchingItemIDsForEvent(matchEV, nil, nil, nil,
+	aPrflIDs, err = MatchingItemIDsForEvent(matchEV, nil, nil, nil, nil,
 		dmMatch, utils.CacheAttributeFilterIndexes, tntCtx, true, false)
 	if err != nil {
 		t.Errorf("Error: %+v", err)
@@ -129,7 +129,7 @@ func TestFilterMatchingItemIDsForEvent(t *testing.T) {
 	matchEV = utils.MapStorage{utils.MetaReq: map[string]any{
 		"Field": "profilePrefix",
 	}}
-	aPrflIDs, err = MatchingItemIDsForEvent(matchEV, nil, nil, nil,
+	aPrflIDs, err = MatchingItemIDsForEvent(matchEV, nil, nil, nil, nil,
 		dmMatch, utils.CacheAttributeFilterIndexes, tntCtx, true, false)
 	if err != nil {
 		t.Errorf("Error: %+v", err)
@@ -196,7 +196,7 @@ func TestFilterMatchingItemIDsForEvent2(t *testing.T) {
 		utils.AnswerTime: time.Date(2014, 7, 14, 14, 30, 0, 0, time.UTC),
 		"CallCost":       map[string]any{"Account": 1001},
 	}}
-	aPrflIDs, err := MatchingItemIDsForEvent(matchEV, nil, nil, nil,
+	aPrflIDs, err := MatchingItemIDsForEvent(matchEV, nil, nil, nil, nil,
 		dmMatch, utils.CacheAttributeFilterIndexes, tntCtx, true, true)
 	if err != nil {
 		t.Errorf("Error: %+v", err)
@@ -208,7 +208,7 @@ func TestFilterMatchingItemIDsForEvent2(t *testing.T) {
 	matchEV = utils.MapStorage{utils.MetaReq: map[string]any{
 		"CallCost": map[string]any{"Field": "profilePrefix"},
 	}}
-	aPrflIDs, err = MatchingItemIDsForEvent(matchEV, nil, nil, nil,
+	aPrflIDs, err = MatchingItemIDsForEvent(matchEV, nil, nil, nil, nil,
 		dmMatch, utils.CacheAttributeFilterIndexes, tntCtx, true, true)
 	if err != nil {
 		t.Errorf("Error: %+v", err)
diff --git a/utils/consts.go b/utils/consts.go
index bc45bb757..5ba73caf1 100644
--- a/utils/consts.go
+++ b/utils/consts.go
@@ -2163,6 +2163,7 @@ const (
 	StringIndexedFieldsCfg = "string_indexed_fields"
 	PrefixIndexedFieldsCfg = "prefix_indexed_fields"
 	SuffixIndexedFieldsCfg = "suffix_indexed_fields"
+	ExistsIndexedFieldsCfg = "exists_indexed_fields"
 	MongoQueryTimeoutCfg   = "mongoQueryTimeout"
 	MongoConnSchemeCfg     = "mongoConnScheme"
 	PgSSLModeCfg           = "pgSSLMode"