How To Fix WL120 - Messages were created when checking the expression -> see log

SAP Error Message - Details

• Message type: E = Error

• Message class: WL - Workflow: run-time messages

• Message number: 120

• Message text: Messages were created when checking the expression -> see log

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message WL120 - Messages were created when checking the expression -> see log ?

  The SAP error message WL120 indicates that there were issues encountered while checking an expression in a workflow. This message typically arises in the context of SAP Business Workflow, where expressions are evaluated to determine the flow of the process.
  Cause:
  The error can be caused by several factors, including:
  
  Syntax Errors: There may be a syntax error in the expression being evaluated.
  Invalid Variables: The expression may reference variables that are not defined or are out of scope.
  Data Type Mismatch: The expression may involve operations on incompatible data types.
  Logical Errors: There may be logical errors in the expression that prevent it from being evaluated correctly.
  Configuration Issues: There may be issues with the workflow configuration or the environment setup.
  
  Solution:
  To resolve the WL120 error, you can follow these steps:
  
  Check the Log: The error message suggests checking the log for more details. Look for specific error messages or warnings that can provide insight into what went wrong.
  Review the Expression: Carefully review the expression that is causing the error. Check for:
  
  Syntax correctness
  Proper variable definitions
  Correct data types
  
  
  Test the Expression: If possible, test the expression in a simpler context or use a debugger to evaluate it step by step.
  Consult Documentation: Refer to SAP documentation for the specific functions or operators used in the expression to ensure they are being used correctly.
  Check Workflow Configuration: Ensure that the workflow is configured correctly and that all necessary components are in place.
  Seek Help from SAP Community: If you are unable to resolve the issue, consider reaching out to the SAP community or support for assistance.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like SWI1 (Work Item Selection) or SWI2_FREQ (Work Item Selection - Frequency) to analyze workflow instances and their statuses.
  Workflow Logs: Use transaction SWI6 to view workflow logs, which can provide additional context for the error.
  SAP Notes: Check for any relevant SAP Notes that may address known issues related to the WL120 error.
  
  By following these steps, you should be able to identify and resolve the underlying issue causing the WL120 error in your SAP workflow.