How To Fix /PF1/MSG_LOG_GUI026 - Account number checksum validation failed

SAP Error Message - Details

• Message type: E = Error

• Message class: /PF1/MSG_LOG_GUI -

• Message number: 026

• Message text: Account number checksum validation failed

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?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

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 /PF1/MSG_LOG_GUI026 - Account number checksum validation failed ?

  The SAP error message /PF1/MSG_LOG_GUI026 Account number checksum validation failed typically indicates that there is an issue with the account number being processed in the system. This error is often related to the validation of the account number's checksum, which is a method used to ensure the integrity and correctness of the account number format.
  Cause:
  
  Incorrect Account Number Format: The account number may not conform to the expected format or length defined in the system.
  Checksum Calculation Error: The checksum for the account number may not match the expected value, indicating that the account number is either incorrect or has been tampered with.
  Data Entry Errors: Manual entry of the account number may have introduced typographical errors.
  Configuration Issues: There may be issues with the configuration settings in the SAP system that define how account numbers are validated.
  
  Solution:
  
  Verify Account Number: Check the account number for any typographical errors. Ensure that it is entered correctly and conforms to the expected format.
  Check Configuration: Review the configuration settings related to account number validation in the SAP system. Ensure that the settings are correct and align with the business requirements.
  Consult Documentation: Refer to SAP documentation or help resources for specific details on the account number format and checksum validation rules.
  Use Transaction Codes: If applicable, use transaction codes like OB52 (for fiscal year variant) or OBD2 (for account groups) to check the settings related to account numbers.
  Contact Support: If the issue persists, consider reaching out to your SAP support team or consulting with SAP experts for further assistance.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide updates and patches.
  Transaction Codes: Familiarize yourself with transaction codes related to financial accounting, such as FS00 (G/L Account Master Record) or FSP0 (G/L Account Master Record: Change).
  User Exits and BAdIs: If custom logic is implemented, review any user exits or Business Add-Ins (BAdIs) that may affect account number processing.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.