Message SAP /CRMBW/MSG_GEN107 - RFC destination &1 should end with suffix '_T'

Diagnosis
You may be using the incorrect remote function call (RFC) connectionV1.

Procedure
We recommend to use a trusted RFC connection pointing to the CRM client.Provide suffix "_T" for the RFC connection name to emphasize thetrusted connection property; this lets you easily identify them whenneeded.
Using trusted RFC connections, login is enabled without login screen.You can test the connections using Configuration of RFC Connections(transaction SM59): Click Remote Logon.