SAP Message AGR_MAINTENANCE_CHCK003 - Agreement &1 entered in a different system, changes not allowed

Diagnosis
You want to change rebate agreement &V1&. However, the agreement wasnot entered in this system, but stems from a different system (logicalsystem &V2&).

System Response
To prevent data inconsistencies, you are not permitted to change thisagreement in this system.

Procedure
To execute changes to the agreement, go to the system in which theagreement was entered (logical system &V2&) and use the functionsavailable there.