How To Fix WES_FILTER017 - Customizing for filter object &1 / filter &2: Implementing Class Missing

SAP Error Message - Details

• Message type: E = Error

• Message class: WES_FILTER -

• Message number: 017

• Message text: Customizing for filter object &1 / filter &2: Implementing Class Missing

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WES_FILTER017 - Customizing for filter object &1 / filter &2: Implementing Class Missing ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WES_FILTER017
  
  Text: Customizing for filter object &1 / filter &2: Implementing Class Missing
  
  Cause:
  This error occurs when the system tries to use a filter object and filter in the Web Channel or Web Channel Framework (WCF) but cannot find the corresponding implementing ABAP class that should be assigned to this filter in the customizing settings.
  In SAP Web Channel Framework, filters are used to control or restrict data or UI elements dynamically. Each filter object and filter combination must have an implementing class assigned in customizing (transaction WCF_CUST or via IMG path) that contains the logic for the filter.
  If the implementing class is missing or not maintained, the system cannot execute the filter logic, resulting in this error.
  
  Solution:
  
  
  Check Customizing for Filters:
  
  Go to transaction WCF_CUST (Web Channel Framework Customizing).
  Navigate to the filter object and filter mentioned in the error message.
  Verify if an implementing class is assigned to the filter.
  
  
  
  Assign Implementing Class:
  
  If the implementing class is missing, assign the correct ABAP class that implements the filter logic.
  The implementing class must implement the interface IF_WCF_FILTER or a similar interface depending on the filter type.
  
  
  
  If No Standard Class Exists:
  
  You may need to develop a custom ABAP class implementing the required interface.
  Register this class in the customizing for the filter.
  
  
  
  Transport Changes:
  
  After assigning or creating the implementing class, transport the changes to the relevant systems.
  
  
  
  Test:
  
  Test the filter functionality in the Web Channel to ensure the error no longer occurs.
  
  
  
  
  Related Information:
  
  Transaction: WCF_CUST (Web Channel Framework Customizing)
  IMG Path:
  
  SAP NetWeaver -> Web Channel Framework -> Filter Objects -> Define Filter Objects and Filters
  Interface: IF_WCF_FILTER (or related interfaces depending on filter type)
  SAP Notes: Check for any SAP Notes related to WES_FILTER017 for your specific SAP version.
  Documentation: SAP Help Portal for Web Channel Framework filters and customizing.
  
  
  Summary:
  The error WES_FILTER017 indicates that the system cannot find the implementing class for a specific filter object/filter combination in Web Channel Framework customizing. To fix it, assign or create the appropriate implementing class in transaction WCF_CUST.
  
  If you need help identifying the correct implementing class or creating one, please provide the filter object and filter names, and I can assist further.