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

SAP Error Message - Details

• 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.

Smart SAP Assistant

• What is the cause and solution for SAP error message MSR_MM001 - Change returns purchase order & using transaction MEPO ?

  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 may need to reverse or cancel those transactions before making changes.
  Review Data Entry: Ensure that all required fields are filled out correctly. Check for any missing information that may be causing the error.
  Authorization Check: Confirm that you have the necessary permissions to change the purchase order. If not, contact your system administrator to obtain the required access.
  Consult Configuration: If you suspect a configuration issue, consult with your SAP MM configuration team to ensure that the document type and settings allow for the changes you are trying to make.
  Use Alternative Transactions: If MEPO is not allowing you to make the changes, consider using other transactions like ME22N (Change Purchase Order) or ME23N (Display Purchase Order) to see if you can make the necessary adjustments.
  
  Related Information
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as ME21N (Create Purchase Order), ME22N (Change Purchase Order), and ME23N (Display Purchase Order).
  SAP Notes: Check SAP Notes for any known issues or patches related to the error message MSR_MM001.
  Documentation: Review SAP documentation for the Materials Management module to understand the processes and restrictions related to purchase orders and returns.
  Support: If the issue persists, consider reaching out to SAP support or your internal IT support team for further assistance.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.