diff --git a/apier/v1/cdrs_it_test.go b/apier/v1/cdrs_it_test.go
index a07f81809..1d19abb6d 100644
--- a/apier/v1/cdrs_it_test.go
+++ b/apier/v1/cdrs_it_test.go
@@ -55,6 +55,27 @@ func TestCDRsITInternal(t *testing.T) {
 	}
 }
 
+func TestCDRsITMongo(t *testing.T) {
+	cdrsConfDIR = "cdrsv1mongo"
+	for _, stest := range sTestsCDRsIT {
+		t.Run(cdrsConfDIR, stest)
+	}
+}
+
+func TestCDRsITMySql(t *testing.T) {
+	cdrsConfDIR = "cdrsv1mysql"
+	for _, stest := range sTestsCDRsIT {
+		t.Run(cdrsConfDIR, stest)
+	}
+}
+
+func TestCDRsITPostgres(t *testing.T) {
+	cdrsConfDIR = "cdrsv1postgres"
+	for _, stest := range sTestsCDRsIT {
+		t.Run(cdrsConfDIR, stest)
+	}
+}
+
 func testV1CDRsInitConfig(t *testing.T) {
 	var err error
 	cdrsCfgPath = path.Join(*dataDir, "conf", "samples", cdrsConfDIR)
diff --git a/data/conf/samples/cdrsv1mongo/cgrates.json b/data/conf/samples/cdrsv1mongo/cgrates.json
new file mode 100644
index 000000000..01b81d9c4
--- /dev/null
+++ b/data/conf/samples/cdrsv1mongo/cgrates.json
@@ -0,0 +1,44 @@
+{
+// CGRateS Configuration file
+//
+// Used in apier/v1/cdrs_it_test
+
+
+"data_db": {
+	"db_type": "mongo",
+	"db_name": "10",
+	"db_port": 27017,
+},
+
+
+"stor_db": {
+	"db_type": "mongo",
+	"db_name": "cgrates",
+	"db_port": 27017,
+},
+
+"rals": {
+	"enabled": true
+},
+
+
+"scheduler": {
+	"enabled": true
+},
+
+
+"cdrs": {
+	"enabled": true,
+	"rals_conns": [
+		{"address": "127.0.0.1:2012", "transport":"*json"},
+	],
+},
+
+
+"apier": {
+	"scheduler_conns": [					// connections to SchedulerS for reloads
+		{"address": "*internal"},
+	],
+},
+
+}
diff --git a/data/conf/samples/cdrsv1mysql/cgrates.json b/data/conf/samples/cdrsv1mysql/cgrates.json
new file mode 100644
index 000000000..10ad516c9
--- /dev/null
+++ b/data/conf/samples/cdrsv1mysql/cgrates.json
@@ -0,0 +1,41 @@
+{
+// CGRateS Configuration file
+//
+// Used in apier/v1/cdrs_it_test
+
+
+"data_db": {								// database used to store runtime data (eg: accounts, cdr stats)
+	"db_type": "redis",						// data_db type: <redis|mongo>
+	"db_port": 6379, 						// data_db port to reach the database
+	"db_name": "10", 						// data_db database name to connect to
+},
+
+"stor_db": {
+	"db_password": "CGRateS.org",
+},
+
+"rals": {
+	"enabled": true
+},
+
+
+"scheduler": {
+	"enabled": true
+},
+
+
+"cdrs": {
+	"enabled": true,
+	"rals_conns": [
+		{"address": "127.0.0.1:2012", "transport":"*json"},
+	],
+},
+
+
+"apier": {
+	"scheduler_conns": [					// connections to SchedulerS for reloads
+		{"address": "*internal"},
+	],
+},
+
+}
diff --git a/data/conf/samples/cdrsv1postgres/cgrates.json b/data/conf/samples/cdrsv1postgres/cgrates.json
new file mode 100644
index 000000000..d1ac60b9d
--- /dev/null
+++ b/data/conf/samples/cdrsv1postgres/cgrates.json
@@ -0,0 +1,43 @@
+{
+// CGRateS Configuration file
+//
+// Used in apier/v1/cdrs_it_test
+
+
+"data_db": {								// database used to store runtime data (eg: accounts, cdr stats)
+	"db_type": "redis",						// data_db type: <redis|mongo>
+	"db_port": 6379, 						// data_db port to reach the database
+	"db_name": "10", 						// data_db database name to connect to
+},
+
+"stor_db": {
+	"db_type": "postgres",					// stor database type to use: <mysql|postgres>
+	"db_port": 5432, 						// the port to reach the stordb
+	"db_password": "CGRateS.org",
+},
+
+"rals": {
+	"enabled": true
+},
+
+
+"scheduler": {
+	"enabled": true
+},
+
+
+"cdrs": {
+	"enabled": true,
+	"rals_conns": [
+		{"address": "127.0.0.1:2012", "transport":"*json"},
+	],
+},
+
+
+"apier": {
+	"scheduler_conns": [					// connections to SchedulerS for reloads
+		{"address": "*internal"},
+	],
+},
+
+}
diff --git a/engine/storage_mongo_stordb.go b/engine/storage_mongo_stordb.go
index c490f9929..d9d024177 100644
--- a/engine/storage_mongo_stordb.go
+++ b/engine/storage_mongo_stordb.go
@@ -943,6 +943,9 @@ func (ms *MongoStorage) SetCDR(cdr *CDR, allowUpdate bool) (err error) {
 			// return err
 		} else {
 			_, err = ms.getCol(ColCDRs).InsertOne(sctx, cdr)
+			if err != nil && strings.Contains(err.Error(), "E11000") { // Mongo returns E11000 when key is duplicated
+				err = utils.ErrExists
+			}
 		}
 		return err
 	})
diff --git a/engine/storage_sql.go b/engine/storage_sql.go
index 1b59c35ae..992533dfa 100644
--- a/engine/storage_sql.go
+++ b/engine/storage_sql.go
@@ -879,6 +879,9 @@ func (self *SQLStorage) SetCDR(cdr *CDR, allowUpdate bool) error {
 	if saved.Error != nil {
 		tx.Rollback()
 		if !allowUpdate {
+			if strings.Contains(saved.Error.Error(), "1062") || strings.Contains(saved.Error.Error(), "duplicate key") { // returns 1062/pq when key is duplicated
+				return utils.ErrExists
+			}
 			return saved.Error
 		}
 		tx = self.db.Begin()