SAP Message AGR_MAINTENANCE_CHCK005 - Agreement created in another system; settlemnt + maint.only allowed there

Diagnosis
You want to maintain or settle the rebate agreement &V1&. The agreementwas not created in this system, however, but originates in anothersystem (logical system: &V2&). It was flagged there as only externallypayable.

System Response
To prevent data inconsistencies, you are not allowed to make changes tothe agreement &V1& or the corresponding condition records in thissystem. You are also not allowed to make settlements or post manualaccruals.
You can only display or (if it has the appropriate status) finalize theagreement.

Procedure
If you want to make changes to the agreement or its condition records,you need to do so in the system in which the agreement was created(logical system: &V2&). If the agreement has already been released forsettlement (see rebate status), no changes can be made.
If you want to make payments, you also need to do this in the system inwhich the agreement was created.