SAP Message B1550 - An RFC destination could not be specified for the logical system &

Diagnosis
An RFC destination should be specified for the logical system &v1&.This could not be done in this case. &v1& is not your local logicalsystem and this system is not included in the relevant Customizingtables.

Procedure
Check:
RFC destination
Port definitions
oubound partner profile of message type SYNCH for thislogical system