How To Fix BRF185 - General error in comparison operation "&1" in expression "&2"

SAP Error Message - Details

• Message type: E = Error

• Message class: BRF - Messages for Business Rule Framework

• Message number: 185

• Message text: General error in comparison operation "&1" in expression "&2"

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 BRF185 - General error in comparison operation "&1" in expression "&2" ?

  The SAP error message BRF185, which states "General error in comparison operation '&1' in expression '&2'," typically occurs in the context of Business Rule Framework (BRF+) when there is an issue with a comparison operation defined in a rule expression. This error can arise due to various reasons, including data type mismatches, invalid values, or incorrect logic in the expression.
  Causes:
  
  Data Type Mismatch: The operands being compared may not be of compatible data types. For example, comparing a string with a number can lead to this error.
  Invalid Values: One or both of the values being compared may be null or not initialized properly.
  Incorrect Logic: The expression may contain logical errors or syntax issues that prevent it from being evaluated correctly.
  Unsupported Operations: The comparison operation being used may not be supported in the context of the BRF+ expression.
  
  Solutions:
  
  Check Data Types: Ensure that the data types of the operands being compared are compatible. If necessary, convert one of the operands to match the other’s data type.
  Validate Input Values: Make sure that the values being compared are valid and initialized. Check for null values or unexpected data.
  Review Expression Logic: Go through the expression logic to identify any potential errors or misconfigurations. Ensure that the syntax is correct and that the logic aligns with the intended comparison.
  Test with Sample Data: Use sample data to test the expression and see if the error persists. This can help isolate the issue.
  Consult Documentation: Refer to the SAP documentation for BRF+ to understand the supported comparison operations and their requirements.
  
  Related Information:
  
  BRF+ Documentation: SAP provides extensive documentation on BRF+, including guidelines for creating expressions and rules.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide patches related to BRF+ errors.
  Debugging Tools: Utilize debugging tools within SAP to trace the execution of the rule and identify where the error occurs.
  Community Forums: Engage with SAP community forums or support channels to seek advice from other users who may have encountered similar issues.
  
  By following these steps, you should be able to diagnose and resolve the BRF185 error effectively.