How To Fix MM_PUR_SES146 - Changing Account Assignment Number is not allowed.

SAP Error Message - Details

• Message type: E = Error

• Message class: MM_PUR_SES -

• Message number: 146

• Message text: Changing Account Assignment Number is not allowed.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MM_PUR_SES146 - Changing Account Assignment Number is not allowed. ?

  The SAP error message MM_PUR_SES146, which states "Changing Account Assignment Number is not allowed," typically occurs in the context of purchasing documents, such as purchase orders or purchase requisitions, when there is an attempt to change the account assignment number after the document has been created or processed.
  Cause:
  
  Document Status: The document may be in a status that does not allow changes, such as being released, completed, or already processed in accounting.
  Account Assignment Type: The account assignment type (e.g., cost center, internal order, etc.) may have restrictions on changes after certain actions have been taken.
  Configuration Settings: The system configuration may restrict changes to account assignment numbers for specific document types or under certain conditions.
  Document Flow: If the document is linked to other documents (like invoices or goods receipts), changing the account assignment number may violate the integrity of the document flow.
  
  Solution:
  
  Check Document Status: Verify the status of the document. If it is in a status that does not allow changes, you may need to reverse or cancel related documents before making changes.
  Create a New Document: If changing the account assignment number is essential, consider creating a new purchase order or requisition with the correct account assignment instead of modifying the existing one.
  Consult Configuration: If you believe the change should be allowed, consult with your SAP configuration team to review the settings related to account assignment changes for the specific document type.
  Use Transaction Codes: Use transaction codes like ME22N (Change Purchase Order) to check the document and see if there are any options available for editing.
  Check for Related Documents: Ensure that there are no related documents that would prevent the change. If there are, you may need to address those first.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or updates related to this error message. SAP frequently releases notes that may provide additional context or solutions.
  User Authorization: Ensure that you have the necessary authorizations to make changes to the document. Sometimes, restrictions are in place based on user roles.
  Training and Documentation: Review internal training materials or SAP documentation regarding account assignments and purchasing processes to understand the implications of changing account assignments.
  
  If the issue persists after trying the above solutions, it may be beneficial to reach out to your SAP support team or consult with an SAP expert for further assistance.