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

M8_2007 - Overview

• 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.

Unfortunately, there isn't any extra information in this error notice.

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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