We recently upgraded from SAP 4.7 to ECC 6.0. In the new system, the vendor rebate settlement (MEB4) is giving the following errors:
1. Error messages generated during billing document check run
Message no. MN236
Settlement accounting for rebate arrangement 85 is carried out using the general billing interface in the system (credit-side settlement type) or the general billing interface for customer billing documents (debit-side settlement type).
It is also possible that credit memos (invoice verification, credit- side settlement type) are involved.
The documents cannot be created without errors.
2. For vendor 1885 no partner exists for partner function PI
Message no. WS723
The process used to work in the 4.7 version and no changes have been made to the configuration in the new system. Can someone please suggest the reason for these errors and how they can be resolved?