Message SAP X4502 - The work center &1 / plant &2 is not in the active integration model

Diagnosis
The work center of resource &V1& in plant &V2& does not exist in anactive integration model or a work center has not been entered in theoperation/phase.

System Response
For the order transfer, the system assumes that the work center willnot be planned in the connected APO system. Operations/phases that areto be processed at this work center are not sent to the APO system.
Operations/phases that are not assigned to a work center are also nottransferred to the APO system.

Procedure for System Administration
Internal key of the work center:
ARBID: &V3&