Adding to contact data was not successful

What causes this issue?

The system could not add the payment to the contact data in Customer
Relationship Management (CRM).

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

One of the reasons listed below is the cause of the error:
No session ID could be determined.
There is no logical system defined.
No RFC desitination was entered for the callback.
During the callback to CRM, a technical error occurred in the RFC call.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.