How To Fix FS518 - Check numbers cannot have different prefixes

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 518

• Message text: Check numbers cannot have different prefixes

What causes this issue?

A check number can have a part which does not consist of digits, for
example, CH000014. This non-numerical part before the digits is called
the prefix. The prefixes of all check numbers which belong to a
particular bank account must be the same.

How to fix this error?

Check the prefixes of the check numbers entered.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FS518 - Check numbers cannot have different prefixes ?

  The SAP error message FS518, which states "Check numbers cannot have different prefixes," typically occurs in the context of financial transactions involving checks. This error indicates that there is a mismatch in the prefixes of the check numbers being processed. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Different Prefixes: The error arises when you attempt to process checks that have different prefixes. For example, if you have check numbers starting with "A" and "B," SAP will not allow you to process them together.
  Configuration Issues: The check number ranges may be configured in such a way that they are expected to have a consistent prefix, but the data being processed does not adhere to this configuration.
  Data Entry Errors: Manual entry of check numbers may lead to inconsistencies in prefixes, especially if users are not following the established numbering conventions.
  
  Solution:
  
  Check Number Consistency: Ensure that all check numbers being processed have the same prefix. Review the check numbers in the transaction to confirm they match.
  Review Configuration: Check the configuration settings for check number ranges in the SAP system. This can typically be found in the Financial Accounting (FI) module under the settings for payment methods or check management.
  Correct Data Entry: If the error is due to manual entry, ensure that users are trained to enter check numbers correctly and consistently.
  Use the Correct Payment Method: Make sure that the payment method being used is appropriate for the check numbers you are trying to process. Different payment methods may have different prefix requirements.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on managing check numbers and prefixes in your version of SAP.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as F110 (Automatic Payment Transactions) or FCH5 (Check Management) that may be involved in processing checks.
  SAP Notes: Check SAP Notes for any known issues or patches related to check processing and error FS518.
  User Roles and Authorizations: Ensure that users have the appropriate roles and authorizations to manage check processing effectively.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP support team or a technical consultant who can provide more in-depth assistance tailored to your specific SAP environment.