diff --git a/engine/alias.go b/engine/alias.go
index ccdbcbcc4..09765a3b8 100644
--- a/engine/alias.go
+++ b/engine/alias.go
@@ -20,7 +20,6 @@ package engine
 
 import (
 	"fmt"
-	"sort"
 	"time"
 
 	"github.com/cgrates/cgrates/config"
@@ -28,33 +27,6 @@ import (
 	"github.com/cgrates/cgrates/utils"
 )
 
-type AliasEntry struct {
-	FieldName string
-	Initial   string
-	Alias     string
-}
-
-type AliasProfile struct {
-	Tenant             string
-	ID                 string
-	FilterIDs          []string
-	ActivationInterval *utils.ActivationInterval    // Activation interval
-	Aliases            map[string]map[string]string // map[FieldName][InitialValue]AliasValue
-	Weight             float64
-}
-
-func (als *AliasProfile) TenantID() string {
-	return utils.ConcatenatedKey(als.Tenant, als.ID)
-}
-
-// AliasProfiles is a sortable list of Alias profiles
-type AliasProfiles []*AliasProfile
-
-// Sort is part of sort interface, sort based on Weight
-func (aps AliasProfiles) Sort() {
-	sort.Slice(aps, func(i, j int) bool { return aps[i].Weight > aps[j].Weight })
-}
-
 func NewAliasService(dm *DataManager, filterS *FilterS, indexedFields []string) (*AliasService, error) {
 	return &AliasService{dm: dm, filterS: filterS, indexedFields: indexedFields}, nil
 }
@@ -130,50 +102,3 @@ func (alS *AliasService) V1ProcessEvent(ev *utils.CGREvent,
 	reply *string) (err error) {
 	return
 }
-
-type ExternalAliasProfile struct {
-	Tenant             string
-	ID                 string
-	FilterIDs          []string
-	ActivationInterval *utils.ActivationInterval // Activation interval
-	Aliases            []*AliasEntry
-	Weight             float64
-}
-
-func (eap *ExternalAliasProfile) AsAliasProfile() *AliasProfile {
-	alsPrf := &AliasProfile{
-		Tenant:             eap.Tenant,
-		ID:                 eap.ID,
-		Weight:             eap.Weight,
-		FilterIDs:          eap.FilterIDs,
-		ActivationInterval: eap.ActivationInterval,
-	}
-	alsMap := make(map[string]map[string]string)
-	for _, als := range eap.Aliases {
-		alsMap[als.FieldName] = make(map[string]string)
-		alsMap[als.FieldName][als.Initial] = als.Alias
-	}
-	alsPrf.Aliases = alsMap
-	return alsPrf
-}
-
-func NewExternalAliasProfileFromAliasProfile(alsPrf *AliasProfile) *ExternalAliasProfile {
-	extals := &ExternalAliasProfile{
-		Tenant:             alsPrf.Tenant,
-		ID:                 alsPrf.ID,
-		Weight:             alsPrf.Weight,
-		ActivationInterval: alsPrf.ActivationInterval,
-		FilterIDs:          alsPrf.FilterIDs,
-	}
-	for key, val := range alsPrf.Aliases {
-		for key2, val2 := range val {
-			extals.Aliases = append(extals.Aliases, &AliasEntry{
-				FieldName: key,
-				Initial:   key2,
-				Alias:     val2,
-			})
-		}
-	}
-	return extals
-
-}
diff --git a/engine/libalias.go b/engine/libalias.go
new file mode 100644
index 000000000..ba8853b4b
--- /dev/null
+++ b/engine/libalias.go
@@ -0,0 +1,99 @@
+/*
+Real-time Online/Offline Charging System (OCS) for Telecom & ISP environments
+Copyright (C) ITsysCOM GmbH
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>
+*/
+
+package engine
+
+import (
+	"sort"
+
+	"github.com/cgrates/cgrates/utils"
+)
+
+type AliasEntry struct {
+	FieldName string
+	Initial   string
+	Alias     string
+}
+
+type AliasProfile struct {
+	Tenant             string
+	ID                 string
+	FilterIDs          []string
+	ActivationInterval *utils.ActivationInterval    // Activation interval
+	Aliases            map[string]map[string]string // map[FieldName][InitialValue]AliasValue
+	Weight             float64
+}
+
+func (als *AliasProfile) TenantID() string {
+	return utils.ConcatenatedKey(als.Tenant, als.ID)
+}
+
+// AliasProfiles is a sortable list of Alias profiles
+type AliasProfiles []*AliasProfile
+
+// Sort is part of sort interface, sort based on Weight
+func (aps AliasProfiles) Sort() {
+	sort.Slice(aps, func(i, j int) bool { return aps[i].Weight > aps[j].Weight })
+}
+
+type ExternalAliasProfile struct {
+	Tenant             string
+	ID                 string
+	FilterIDs          []string
+	ActivationInterval *utils.ActivationInterval // Activation interval
+	Aliases            []*AliasEntry
+	Weight             float64
+}
+
+func (eap *ExternalAliasProfile) AsAliasProfile() *AliasProfile {
+	alsPrf := &AliasProfile{
+		Tenant:             eap.Tenant,
+		ID:                 eap.ID,
+		Weight:             eap.Weight,
+		FilterIDs:          eap.FilterIDs,
+		ActivationInterval: eap.ActivationInterval,
+	}
+	alsMap := make(map[string]map[string]string)
+	for _, als := range eap.Aliases {
+		alsMap[als.FieldName] = make(map[string]string)
+		alsMap[als.FieldName][als.Initial] = als.Alias
+	}
+	alsPrf.Aliases = alsMap
+	return alsPrf
+}
+
+func NewExternalAliasProfileFromAliasProfile(alsPrf *AliasProfile) *ExternalAliasProfile {
+	extals := &ExternalAliasProfile{
+		Tenant:             alsPrf.Tenant,
+		ID:                 alsPrf.ID,
+		Weight:             alsPrf.Weight,
+		ActivationInterval: alsPrf.ActivationInterval,
+		FilterIDs:          alsPrf.FilterIDs,
+	}
+	for key, val := range alsPrf.Aliases {
+		for key2, val2 := range val {
+			extals.Aliases = append(extals.Aliases, &AliasEntry{
+				FieldName: key,
+				Initial:   key2,
+				Alias:     val2,
+			})
+		}
+	}
+	return extals
+
+}