How To Fix FS664 - Check the format of the check numbers

SAP Error Message - Details

• Message type: E = Error

• Message class: FS - Messages from Tax Routines / Prenumbered Checks

• Message number: 664

• Message text: Check the format of the check numbers

What causes this issue?

A check number consists of a numeric sequence and, if necessary, can
contain a non-numeric prefix (such as CH000014) or suffix (such as
000014X).
The check number entered does not match the bank account's other check
numbers from a structural point of view. Differences may have occurred
in the length of the prefix or suffix.
INCLUDE 'CUSTOMIZED_MESSAGE_INFO' OBJECT DOKU ID TX

Error message extract from SAP system. Copyright SAP SE.

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• What is the cause and solution for SAP error message FS664 - Check the format of the check numbers ?

  The SAP error message FS664, which states "Check the format of the check numbers," typically occurs in the context of financial transactions involving checks, particularly when processing payments or creating payment media. This error indicates that the check number format does not meet the expected criteria defined in the system.
  Causes:
  
  Incorrect Check Number Format: The check number may not conform to the expected format (e.g., length, numeric vs. alphanumeric).
  Configuration Issues: The settings in the payment medium configuration may not align with the check number format being used.
  Data Entry Errors: Manual entry of check numbers may lead to typos or incorrect formats.
  Custom Development: If there are custom programs or enhancements, they may not handle check number formats correctly.
  
  Solutions:
  
  
  Verify Check Number Format:
  
  Check the format of the check number being entered. Ensure it adheres to the expected format (length, characters).
  If the check number is generated automatically, ensure that the logic for generating the number is correct.
  
  
  
  Review Payment Medium Configuration:
  
  Go to the payment medium configuration settings in SAP (Transaction code: OBPM1 or similar).
  Ensure that the check number format settings are correctly defined according to your organization's requirements.
  
  
  
  Check for Data Entry Errors:
  
  If the check number is entered manually, double-check for any typos or incorrect entries.
  Ensure that users are trained on the correct format for entering check numbers.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help files related to payment processing and check handling for any specific format requirements.
  
  
  
  Debug Custom Code:
  
  If there are custom developments involved, review the code to ensure it correctly handles check number formats.
  Work with your ABAP developer to debug and fix any issues related to check number formatting.
  
  
  
  Test with Sample Data:
  
  Create test cases with valid check numbers to see if the error persists. This can help isolate whether the issue is with specific data or a broader configuration problem.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search the SAP Support Portal for relevant notes.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as F110 (Automatic Payment Transactions) and OBPM1 (Payment Medium Workbench) for managing payment configurations.
  User Training: Ensure that users involved in payment processing are adequately trained on the system and understand the importance of adhering to the correct formats.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP support team or a consultant who specializes in SAP financial modules.