How To Fix FB623 - Check number too large, no document number of this size exists

FB623 - Overview

• Message type: E = Error

• Message class: FB - Batch Programs

• Message number: 623

• Message text: Check number too large, no document number of this size exists

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.

What else can you do?

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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message FB623 - Check number too large, no document number of this size exists ?

  The SAP error message FB623, which states "Check number too large, no document number of this size exists," typically occurs when you are trying to process a check payment in the SAP system, and the check number you are entering exceeds the maximum limit defined in the system or does not correspond to any existing document.
  Causes:
  
  Check Number Limit: The check number you are trying to enter exceeds the maximum allowable value defined in the system settings.
  Document Number Not Found: The check number you are using does not correspond to any existing document in the system, which means that the system cannot find a record associated with that check number.
  Incorrect Configuration: The configuration settings for check numbers in the financial accounting module may not be set up correctly.
  Data Entry Error: There may be a simple typographical error in the check number being entered.
  
  Solutions:
  
  Verify Check Number: Double-check the check number you are