2322682 - Unable to register any Data Services repository through CMC - SAP Data Services 4.x

When registering Data Services database in CMC the following error message is apperaing :

There is a problem to connect to repository: [Listener refused the connection with the following error:
ORA-12514, TNS:listener does not currently know of service requested in connect descriptor
The Connection descriptor used by the client was:
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(PORT=xxxxx)(HOST=xxxxxx))(CONNECT_DATA=(SERVICE_NAME=xxxxx)))

• Any SAP Data Services 4.x
• Any supported platform
• Any Database vendor

register "Data services repository" repository "Data Services" "Repository Manager" structure empty , KBA , EIM-DS-SVR , Administration/Server , Problem