How To Fix WD075 - (Local) event does not use a correlation

SAP Error Message - Details

• Message type: E = Error

• Message class: WD - Workflow definition

• Message number: 075

• Message text: (Local) event does not use a correlation

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• What is the cause and solution for SAP error message WD075 - (Local) event does not use a correlation ?

  SAP Error Message:
  
  WD075 (Local): Event does not use a correlation
  
  Cause
  This error occurs in Web Dynpro ABAP applications when an event handler is defined for an event that is not associated with any correlation. In Web Dynpro, events can be correlated to specific contexts or UI elements to ensure that the event handling is properly scoped. If an event is triggered or handled without a proper correlation, the runtime raises this error.
  More specifically, the error typically arises when:
  
  An event is fired or handled without specifying the correlation ID.
  The event is expected to be correlated (e.g., in component controllers or views that support multiple instances), but the correlation is missing.
  The event handler method is defined for an event that requires correlation, but the correlation is not set or passed.
  
  
  Explanation of Correlation in Web Dynpro
  Correlation is a mechanism in Web Dynpro to uniquely identify instances of UI elements or contexts when multiple instances exist. It helps the framework route events to the correct handler instance.
  For example, if you have multiple table rows or multiple UI elements that can trigger the same event, correlation ensures the event is handled in the context of the correct row or element.
  
  Solution
  
  
  Check Event Definition:
  
  Verify if the event is defined as a correlated event in the Web Dynpro component or view.
  If the event requires correlation, ensure that the correlation ID is properly set when firing the event.
  
  
  
  Set Correlation When Firing Event:
  
  When you raise or fire the event programmatically, use the method that allows passing the correlation ID.
  Example:
  wd_this->fire_<event_name>( iv_correlation = <correlation_id> ).
  
  Make sure the correlation ID corresponds to the correct context or UI element instance.
  
  
  
  Adjust Event Handler:
  
  In the event handler method, ensure that the correlation parameter is handled correctly.
  If the event does not require correlation, remove the correlation parameter from the event definition.
  
  
  
  Review UI Element or Context Usage:
  
  If the event is linked to a UI element (like a table row), ensure that the UI element supports correlation and that the event is fired with the correct correlation.
  
  
  
  Check Web Dynpro Component Configuration:
  
  Sometimes, the error can be caused by incorrect component or view configuration where the event is expected to be correlated but is not.
  
  
  
  
  Additional Information
  
  
  Where to Check:
  
  Event definitions in the Web Dynpro component controller, view controller, or window controller.
  Event firing code in the ABAP code behind the Web Dynpro component.
  UI element properties in the Web Dynpro layout editor.
  
  
  
  SAP Notes and Documentation:
  
  SAP Help Portal on Web Dynpro ABAP event handling and correlation.
  SAP Notes related to WD075 error (search in SAP ONE Support Launchpad).
  
  
  
  Debugging Tips:
  
  Use the Web Dynpro debugger to trace event firing and handling.
  Check the correlation IDs passed during event firing.
  Verify the lifecycle of UI elements and contexts involved.
  
  
  
  
  Summary
  
  
  
  Aspect
  Description
  
  
  
  
  Cause
  Event fired or handled without required correlation ID in Web Dynpro application.
  
  
  Solution
  Ensure event is fired with correct correlation ID; adjust event definition or handler accordingly.
  
  
  Related Info
  Correlation is used to uniquely identify UI/context instances; check event and UI element setup.
  
  
  
  
  If you provide the specific code snippet or scenario where the error occurs, I can help you with a more tailored solution.