How To Fix MMPUR_POHANDLER_TECH006 - Key is already maintained (for &1).

SAP Error Message - Details

• Message type: E = Error

• Message class: MMPUR_POHANDLER_TECH - Technical PO Handler Messages

• Message number: 006

• Message text: Key is already maintained (for &1).

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MMPUR_POHANDLER_TECH006 - Key is already maintained (for &1). ?

  The SAP error message MMPUR_POHANDLER_TECH006 with the description "Key is already maintained (for &1)" typically occurs in the context of purchasing documents, such as purchase orders or purchase requisitions. This error indicates that there is an attempt to create or modify a purchasing document with a key (like a vendor, material, or document number) that already exists in the system.
  Cause:
  
  Duplicate Entries: The most common cause of this error is that the system is trying to create a new entry that already exists. For example, if you are trying to create a purchase order for a vendor that already has an existing purchase order, this error may occur.
  Data Consistency Issues: There may be inconsistencies in the data being processed, such as incorrect or incomplete information that leads the system to believe that a duplicate entry is being created.
  Configuration Issues: Sometimes, the configuration settings in the SAP system may lead to this error, especially if there are custom developments or enhancements that affect how purchasing documents are handled.
  
  Solution:
  
  Check Existing Entries: Verify if the key (e.g., vendor number, material number, or document number) already exists in the system. You can do this by searching for the relevant purchase orders or requisitions in the SAP system.
  Modify Existing Document: If the key already exists, consider modifying the existing document instead of creating a new one. This can often resolve the issue without needing to create a duplicate entry.
  Data Validation: Ensure that the data being entered is correct and does not lead to duplicates. Validate the input fields and ensure that all required fields are filled out correctly.
  Consult with IT or SAP Support: If the issue persists, it may be necessary to consult with your IT department or SAP support team. They can help investigate any underlying configuration issues or custom developments that may be causing the error.
  
  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) to manage purchasing documents effectively.
  SAP Notes: Check for any SAP Notes related to this error message in the SAP Support Portal. There may be specific patches or updates that address this issue.
  Documentation: Review SAP documentation or user manuals related to purchasing processes to understand better how to manage keys and avoid duplicates.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.