Issue: You receive this error message when you log on to FDM: ORA-12154: TNS; could not resolve service name.
Solution: Follow these steps:
Verify that the machine can communicate with the database server by creating: a UDL file, entering the database connection details, and testing the connection.
If using Oracle for the FDM database, ensure that the Oracle Client with Windows Interfaces, which includes the Oracle Provider for OLE DB, is installed on any FDM application server and any server accessing FDM through the Workbench Client.