How To Fix M8_2007 - External document number assignment not allowed together with prepayment

SAP Error Message - Details

• Message type: E = Error

• Message class: M8_2 - Logistics Invoice Verification

• Message number: 007

• Message text: External document number assignment not allowed together with prepayment

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 M8_2007 - External document number assignment not allowed together with prepayment ?

  The SAP error message M8_2007, which states "External document number assignment not allowed together with prepayment," typically occurs in the context of materials management and procurement processes when dealing with prepayments in SAP.
  Cause:
  This error arises when you attempt to create a purchase order or a related document that involves a prepayment while also trying to assign an external document number (like a reference number from an external system). SAP does not allow the combination of these two features because of the way it handles document numbering and prepayment processing.
  Solution:
  To resolve this error, you can consider the following approaches:
  
  
  Remove External Document Number Assignment:
  
  If the external document number is not essential for your process, you can remove it from the transaction. This will allow you to proceed with the prepayment without encountering the error.
  
  
  
  Use Internal Document Numbering:
  
  Ensure that you are using SAP's internal document numbering system instead of an external one when dealing with prepayments. This may involve adjusting your settings or the way you create the document.
  
  
  
  Check Configuration Settings:
  
  Review the configuration settings in your SAP system related to document number assignment and prepayments. You may need to consult with your SAP administrator or functional consultant to ensure that the settings align with your business processes.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for more detailed information on handling prepayments and document number assignments. This can provide insights into best practices and system limitations.
  
  
  
  Transaction Type Review:
  
  Ensure that the transaction type you are using supports prepayments and does not require an external document number. Some transaction types may have specific rules regarding document handling.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance on handling prepayments and document number assignments.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed. Other users may have encountered the same error and can share their solutions.
  Testing: If possible, test the changes in a development or quality assurance environment before applying them to the production system to ensure that the solution works as expected.
  
  By following these steps, you should be able to resolve the M8_2007 error and successfully process your transactions involving prepayments.