How To Fix F5A255 - More than one Financial Accounting document has an external document no.

F5A255 - Overview

• Message type: E = Error

• Message class: F5A - Document Editing

• Message number: 255

• Message text: More than one Financial Accounting document has an external document no.

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 F5A255 - More than one Financial Accounting document has an external document no. ?

  The SAP error message F5A255 indicates that there are multiple Financial Accounting (FI) documents that share the same external document number. This situation typically arises when the same external document number is used for different transactions, leading to confusion in the system.
  
  Cause:
  
  
  Duplicate External Document Numbers: The most common cause is that the same external document number has been used for multiple postings in the FI module. This can happen if:
  
  Users manually enter the external document number and inadvertently reuse it.
  There are issues with data migration or integration from other systems that result in duplicate entries.
  
  
  
  
  Configuration Issues: In some cases, the configuration settings for document number ranges may not be set up correctly, allowing for duplicates.
  
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Identify Duplicate Documents:
  
  Use transaction codes like FB03 (Display Document) or FBL1N (Vendor Line Item Display) to search for the external document number in question.
  Check the list of