How To Fix /PF1/MSG_LOG_GUI196 - UCI is not valid (determined by check digit)

SAP Error Message - Details

• Message type: E = Error

• Message class: /PF1/MSG_LOG_GUI -

• Message number: 196

• Message text: UCI is not valid (determined by check digit)

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PF1/MSG_LOG_GUI196 - UCI is not valid (determined by check digit) ?

  The SAP error message /PF1/MSG_LOG_GUI196 UCI is not valid (determined by check digit) typically indicates that there is an issue with the Unique Customer Identifier (UCI) that is being processed in the system. This error is often related to data validation, where the UCI provided does not pass the check digit validation.
  Cause:
  
  Invalid UCI Format: The UCI may not conform to the expected format or length.
  Incorrect Check Digit: The check digit, which is a form of redundancy check used for error detection, may be incorrect. This can happen if the UCI was manually entered or copied incorrectly.
  Data Corruption: There may be issues with the data in the database, leading to an invalid UCI.
  System Configuration: There could be configuration issues in the SAP system that affect how UCIs are validated.
  
  Solution:
  
  Verify UCI: Check the UCI for any typographical errors. Ensure that it is entered correctly and conforms to the expected format.
  Recalculate Check Digit: If you have access to the algorithm used to calculate the check digit, you can recalculate it to ensure it matches the UCI you have.
  Consult Documentation: Refer to SAP documentation or guidelines regarding the UCI format and validation rules to ensure compliance.
  Database Check: If you suspect data corruption, check the database entries for the UCI in question. You may need to consult with your database administrator or SAP support.
  Contact SAP Support: If the issue persists after verifying the UCI and recalculating the check digit, consider reaching out to SAP support for further assistance.
  
  Related Information:
  
  UCI Definition: The Unique Customer Identifier is a unique identifier assigned to customers in the SAP system, often used for tracking and managing customer-related data.
  Check Digit Calculation: The check digit is typically calculated using a specific algorithm (like Luhn's algorithm) that ensures the integrity of the identifier.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error message or provide additional troubleshooting steps.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.