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

FS664 - Overview

• 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.

Smart SAP Assistant

• 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