How To Fix W8120 - Messages were created when checking the expression -> see log

W8120 - Overview

• Message type: E = Error

• Message class: W8 - Workflow: Expressions, data flow

• 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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W8120 - Details

• SAP Error Message:
  W8120 - Messages were created when checking the expression -> see log
  
  
  Cause:
  This warning message typically occurs during the evaluation or syntax check of an expression in SAP (for example, in conditions, formulas, or user-exits). It indicates that while checking the expression, one or more messages (errors or warnings) were generated and logged. The system prompts you to review the detailed log to understand the specific issues found in the expression.
  Common causes include:
  
  Syntax errors in the expression.
  Use of undefined variables or fields.
  Incorrect function calls or parameters.
  Logical inconsistencies or invalid references.
  Missing or incorrect data elements in the expression context.
  
  
  
  Solution:
  
  
  Check the Log Details:
  
  The message advises to "see log." You should look at the detailed log or trace where the expression check was performed.
  In many cases, this log is accessible via the application or transaction where the expression is maintained (e.g., condition technique, pricing procedure, BRF+ rules, or custom code).
  The log will