How To Fix KN097 - Invalid comparison operator

SAP Error Message - Details

• Message type: E = Error

• Message class: KN - Reporting for Costing

• Message number: 097

• Message text: Invalid comparison operator

What causes this issue?

When defining threshold values, you specified a comparison operator
that is not valid.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Enter a valid comparison operator (such as "<", ">", or "=").

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KN097 - Invalid comparison operator ?

  The SAP error message KN097 "Invalid comparison operator" typically occurs in the context of data selection or filtering, particularly when working with customer master data or similar datasets. This error indicates that there is an issue with the comparison operator used in a selection criterion, which is not recognized or is incorrectly formatted.
  Causes:
  
  Incorrect Syntax: The comparison operator used in the selection criteria may be incorrectly specified. For example, using an unsupported operator or a typo in the operator.
  Data Type Mismatch: The data type of the field being compared may not match the type of the value being used in the comparison. For instance, comparing a string to a numeric value.
  Custom Code or Enhancements: If there are custom programs, user exits, or enhancements that manipulate selection criteria, they may introduce invalid operators.
  Configuration Issues: In some cases, configuration settings in the SAP system may lead to this error if they are not set up correctly.
  
  Solutions:
  
  Check the Selection Criteria: Review the selection criteria where the error occurs. Ensure that the comparison operators are valid and correctly formatted. Common operators include =, <>, <, >, <=, >=.
  Data Type Verification: Ensure that the data types of the fields being compared are compatible. For example, if you are comparing a numeric field, ensure that the value being compared is also numeric.
  Review Custom Code: If the error arises from custom code, review the logic to ensure that all comparison operators are valid and that the data types are being handled correctly.
  SAP Notes and Documentation: Check SAP Notes for any known issues related to this error message. SAP may have provided patches or updates that address this issue.
  Testing in Different Environments: If possible, test the same selection criteria in a different environment (like a development or quality assurance system) to see if the issue persists.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for the specific module you are working with, as it may provide insights into valid operators and selection criteria.
  Community Forums: SAP Community and other forums can be helpful for finding similar issues faced by other users and the solutions they implemented.
  Transaction Codes: If the error occurs in a specific transaction, note the transaction code and check for any related configuration or settings that might be causing the issue.
  
  If the problem persists after trying the above solutions, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.