How To Fix SALV_X_API041 - Comparison operators must be at the start in a filter condition

SAP Error Message - Details

• Message type: E = Error

• Message class: SALV_X_API - Messages for ALV API exceptions

• Message number: 041

• Message text: Comparison operators must be at the start in a filter condition

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SALV_X_API041 - Comparison operators must be at the start in a filter condition ?

  The SAP error message SALV_X_API041 indicates that there is an issue with the filter condition you are trying to apply in an ALV (ABAP List Viewer) report using the SALV (Simple ALV) API. Specifically, the error message states that comparison operators must be at the start of a filter condition.
  Cause:
  This error typically occurs when the filter condition string is not formatted correctly. In the context of ALV filtering, the filter conditions must start with a comparison operator (like =, <>, >, <, >=, <=, etc.) followed by the field name and the value to compare against. If the filter condition does not adhere to this format, the SALV API will raise this error.
  Example of Incorrect Filter Condition:
  DATA(lo_alv) = NEW cl_salv_table( ... ).
  DATA(lo_filter) = lo_alv->get_filter( ).
  lo_filter->add_filter_field( 'FIELD_NAME' 'value' ).  " Incorrect
  Correct Filter Condition:
  The correct way to specify a filter condition is to ensure that the comparison operator is at the start:
  DATA(lo_alv) = NEW cl_salv_table( ... ).
  DATA(lo_filter) = lo_alv->get_filter( ).
  lo_filter->add_filter_field( 'FIELD_NAME' 'value' 'EQ' ).  " Correct
  Solution:
  
  Check the Filter Condition: Review the filter conditions you are applying to ensure that they start with a valid comparison operator.
  Use the Correct Method: When adding filter fields, ensure you are using the correct method and parameters as per the SALV API documentation.
  Debugging: If you are dynamically constructing filter conditions, add debugging statements to check the format of the filter string before it is applied.
  
  Related Information:
  
  SALV API Documentation: Refer to the official SAP documentation for the SALV API to understand the correct usage of filter conditions.
  ABAP Programming Guidelines: Familiarize yourself with ABAP programming best practices, especially when working with ALV and filtering data.
  SAP Community: If you continue to face issues, consider reaching out to the SAP Community forums for additional support and examples from other developers.
  
  By ensuring that your filter conditions are correctly formatted, you should be able to resolve the SALV_X_API041 error and successfully apply filters in your ALV reports.