SAP Message VQ260 - Remote Function Call (RFC) could not be carried out!

Diagnosis
The Remote Function Call (RFC) for copying the account assignmentCustomizing settings to the planning server (APO) could not be carriedout.
The system tried to connect with system &v1&.

System Response
The new settings were not copied. For this reason, the settings willnot be taken into account during account assignment.

Procedure
Check the settings for the RFC destination to the planning server.
Check that the planning server is available (activated).
When the server is available again, call Customizing online again andsave the settings again.
If this message does not appear again, then the data has been copiedsuccessfully to the planning server.