How To Fix /ISDFPS/MM042 - The PO header data for items in delivery &1 is not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: /ISDFPS/MM -

• Message number: 042

• Message text: The PO header data for items in delivery &1 is not unique

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /ISDFPS/MM042 - The PO header data for items in delivery &1 is not unique ?

  The SAP error message /ISDFPS/MM042 indicates that there is an issue with the purchase order (PO) header data for items in a delivery. Specifically, it means that the system has detected that the PO header data is not unique for the items being processed in the delivery. This can occur in scenarios where multiple items in a delivery are linked to the same purchase order, but the system requires that each item has unique header data.
  Causes:
  
  Multiple Items from the Same PO: The delivery may contain multiple items that reference the same purchase order, but the system expects unique header data for each item.
  Incorrect PO Configuration: There may be issues with how the purchase order is configured, such as missing or incorrect data.
  Data Inconsistencies: There could be inconsistencies in the data between the purchase order and the delivery, such as differences in item quantities or descriptions.
  Delivery Document Issues: The delivery document may have been created incorrectly or may not have been updated properly.
  
  Solutions:
  
  Check Purchase Order: Review the purchase order associated with the delivery. Ensure that the items in the delivery are correctly linked to the PO and that there are no discrepancies in the data.
  Review Delivery Items: Check the items in the delivery to ensure that they are correctly assigned to the purchase order and that there are no duplicate entries.
  Adjust Delivery Document: If necessary, adjust the delivery document to ensure that it reflects the correct items and quantities. You may need to split the delivery if multiple items are causing the issue.
  Consult SAP Notes: Look for any relevant SAP Notes that may address this specific error message. SAP frequently updates its knowledge base with solutions for known issues.
  Contact SAP Support: If the issue persists and you cannot find a resolution, consider reaching out to SAP support for assistance.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes such as ME23N (Display Purchase Order) or VL03N (Display Outbound Delivery) to investigate the purchase order and delivery details.
  Debugging: If you have access to debugging tools, you can analyze the program logic to understand why the uniqueness check is failing.
  User Authorization: Ensure that you have the necessary authorizations to view and modify purchase orders and delivery documents.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.