How To Fix MSR_MM001 - Change returns purchase order & using transaction MEPO

MSR_MM001 - Overview

• Message type: E = Error

• Message class: MSR_MM - MSR: Message class for MSR orders

• Message number: 001

• Message text: Change returns purchase order & using transaction MEPO

What causes this issue?

Returns stock transport orders for store returns with outbound and
inbound delivery can only be changed with transaction <LS>MEPO</>.
Returns purchase orders or returns stock transport orders for Advanced
Returns Management can only be changed with transaction <LS>MEPO</>.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

MSR_MM001 - Details

• The SAP error message MSR_MM001 typically occurs when there is an issue with changing a purchase order (PO) related to returns in the Materials Management (MM) module. This error can arise due to various reasons, such as incorrect data entry, missing information, or system configuration issues.
  Cause
  
  Incorrect PO Status: The purchase order may be in a status that does not allow changes (e.g., it might be fully delivered or invoiced).
  Missing or Incorrect Data: Required fields may be missing or incorrectly filled out in the PO.
  Authorization Issues: The user may not have the necessary permissions to make changes to the purchase order.
  
  Configuration Issues: There may be issues with the configuration of the purchasing module or the specific document type.
  Document Type Restrictions: Certain document types may have restrictions on changes after certain actions have been completed.
  
  Solution
  
  Check PO Status: Verify the status of the purchase order. If it is fully delivered or invoiced, you