How To Fix SALV_IDA304 - Function 'Delete Filter' not possible for reference field &1

SAP Error Message - Details

• Message type: E = Error

• Message class: SALV_IDA - IDA specific messages

• Message number: 304

• Message text: Function 'Delete Filter' not possible for reference field &1

What causes this issue?

The amount or quantity field associated with the reference field is also
filtered resulting in the unavailability of the 'Delete Filter' function

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?

Remove the filter of the associated amount or quantity field. You can
then use the 'Delete Filter' function on the reference field.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SALV_IDA304 - Function 'Delete Filter' not possible for reference field &1 ?

  The SAP error message SALV_IDA304 indicates that the function to delete a filter is not possible for a reference field in the context of the SAP ALV (ABAP List Viewer) Grid. This typically occurs when you are trying to manipulate filters in an ALV display that involves reference fields, which are fields that reference data from another table or structure.
  Cause:
  
  Reference Field: The field you are trying to delete the filter for is a reference field. Reference fields are often used to display data from related tables, and certain operations on these fields may be restricted.
  Filter Restrictions: The ALV framework may impose restrictions on filtering operations for reference fields to maintain data integrity and consistency.
  Technical Limitations: There may be technical limitations in the ALV implementation that prevent certain operations on reference fields.
  
  Solution:
  
  Check Field Type: Verify if the field you are trying to delete the filter for is indeed a reference field. If it is, consider whether you need to apply filters on this field or if you can achieve your goal using a different approach.
  Modify Filter Logic: If you need to filter data based on the reference field, consider applying filters on the underlying fields instead of the reference field itself.
  Use Alternative Methods: If the ALV does not support the operation you are trying to perform, consider using alternative methods to achieve your goal, such as:
  
  Creating a custom report that handles filtering differently.
  Using a different display method that allows for more flexibility with reference fields.
  
  
  Consult Documentation: Review the SAP documentation for the ALV and the specific components you are using to understand the limitations and best practices for working with reference fields.
  
  Related Information:
  
  ALV Grid Control: The ALV Grid Control is a powerful tool in SAP for displaying and manipulating lists of data. Understanding its capabilities and limitations is crucial for effective use.
  Reference Fields in ABAP: Familiarize yourself with how reference fields work in ABAP and their implications for data manipulation.
  SAP Notes and Community: Check SAP Notes for any known issues or updates related to the SALV_IDA304 error. The SAP Community forums can also be a valuable resource for troubleshooting and finding solutions from other users who may have encountered similar issues.
  
  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.