How To Fix /CWM/MM045 - Unauthorized account assignment in invoice item &1, acc. assgnmt line &2

SAP Error Message - Details

• Message type: E = Error

• Message class: /CWM/MM -

• Message number: 045

• Message text: Unauthorized account assignment in invoice item &1, acc. assgnmt line &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /CWM/MM045 - Unauthorized account assignment in invoice item &1, acc. assgnmt line &2 ?

  The SAP error message /CWM/MM045 Unauthorized account assignment in invoice item &1, acc. assgnmt line &2 typically occurs in the context of invoice processing, particularly when there is an issue with the account assignment for a specific line item in the invoice. This error indicates that the user does not have the necessary authorization to post to the specified account assignment.
  Cause:
  
  Authorization Issues: The user attempting to process the invoice does not have the required authorizations for the account assignment specified in the invoice item.
  Account Assignment Configuration: The account assignment may not be correctly configured in the system, or the account may be restricted for certain users or roles.
  Incorrect Account Assignment: The account assignment may not be valid for the type of transaction being processed, or it may not exist in the system.
  
  Solution:
  
  
  Check User Authorizations:
  
  Verify the user's roles and authorizations in the SAP system. Ensure that the user has the necessary permissions to post to the account assignment in question.
  Use transaction code SU53 to check for authorization failures after the error occurs. This will show which authorization object is missing.
  
  
  
  Review Account Assignment:
  
  Check the account assignment details in the invoice item. Ensure that the account assignment is valid and correctly configured.
  If the account assignment is related to a cost center, internal order, or project, ensure that these objects are active and that the user has access to them.
  
  
  
  Consult with SAP Security Team:
  
  If the user requires additional authorizations, consult with the SAP security team to adjust the user's roles or permissions accordingly.
  
  
  
  Configuration Check:
  
  If the issue persists, review the configuration settings related to account assignments in the relevant modules (e.g., MM, FI). Ensure that the account assignment types are correctly set up and that there are no restrictions in place.
  
  
  
  Testing:
  
  After making any changes, test the invoice processing again to ensure that the error has been resolved.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  SU01 (User Maintenance) to check and modify user roles.
  SU53 (Authorization Check) to analyze authorization issues.
  ME21N (Create Purchase Order) or MIRO (Enter Incoming Invoice) to replicate the error.
  
  
  
  Documentation: Refer to SAP Help documentation for detailed information on authorization objects and account assignment configurations.
  
  
  Support: If the issue cannot be resolved internally, consider reaching out to SAP support for further assistance.
  
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.