SAP Message B!011 - Error using Remote Function Call in system &.

Diagnosis
An RFC (Remote Function Call) could not be carried out because thesystem was unable to call destination &V1&. Possible reasons are anerroneously maintained remote destination, the fact that the systembeing called is inactive, or a missing function module in the targetsystem.

System Response
If update postings are running, the program terminates, otherwise thesystem outputs an information message.

Procedure
Inform your system administrator.