How To Fix WD200 - Specify object for event '&'

SAP Error Message - Details

• Message type: E = Error

• Message class: WD - Workflow definition

• Message number: 200

• Message text: Specify object for event '&'

What causes this issue?

An event was entered before the object type of the event was specified.
An event can only be used in conjunction with its object type.

System Response

The definition of the step is incorrect.

How to fix this error?

Please remove the entry or enter an object type and then find out which
events belong to the object type using the F4 input help.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WD200 - Specify object for event '&' ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WD200 Specify object for event '&'
  
  Cause:
  This error occurs in Web Dynpro ABAP when an event is triggered but the corresponding event handler method does not specify the object (usually the context node or UI element) that the event is related to. Essentially, the framework expects an object reference to be passed along with the event, but it is missing or not properly defined.
  In other words, the event is raised without specifying the object instance that should handle or be associated with the event.
  
  When does it occur?
  
  When an event is fired in a Web Dynpro component or view without specifying the object parameter.
  When the event handler method expects an object reference but none is provided.
  When the event binding in the Web Dynpro component is incomplete or incorrectly configured.
  
  
  Solution:
  
  
  Check Event Declaration and Usage:
  
  Verify that the event is properly declared in the Web Dynpro component or interface.
  Ensure that when the event is raised (e.g., raise_event method), the object parameter is correctly passed.
  
  
  
  Specify the Object Parameter:
  
  When raising the event, specify the object that the event relates to. For example:
  raise_event <event_name> exporting object = <object_reference>.
  
  The object reference is typically a context node, context element, or UI element instance.
  
  
  
  Review Event Handler Method:
  
  Check the event handler method signature to ensure it expects the object parameter.
  Make sure the event handler is correctly bound to the event and can receive the object.
  
  
  
  Check Event Binding in Web Dynpro:
  
  In the Web Dynpro component editor, verify that the event is bound to the correct handler method.
  Ensure that the event binding includes the object parameter if required.
  
  
  
  Debugging:
  
  Use the debugger to check the event raising point and confirm if the object parameter is passed.
  Check the call stack to see where the event is triggered and if the object is missing.
  
  
  
  
  Related Information:
  
  Web Dynpro ABAP Events: Events in Web Dynpro are used to notify other components or parts of the UI about changes or actions. They often require an object reference to provide context.
  Event Raising Syntax:  
  raise_event <event_name> exporting object = <object_reference>.
  
  SAP Notes and Documentation:  
  
  Check SAP Help Portal for Web Dynpro ABAP event handling.
  Search for SAP Notes related to WD200 error for any patches or known issues.
  
  
  Common Mistakes:
  
  Forgetting to pass the object parameter when raising the event.
  Incorrect event handler method signature.
  Misconfigured event bindings in the Web Dynpro component.
  
  
  
  
  Summary:
  The error WD200 Specify object for event '&' indicates that an event was raised without specifying the required object reference. To fix it, ensure that when raising the event, the object parameter is provided and that event handlers are correctly defined and bound.
  
  If you need help with a specific code snippet or scenario, feel free to provide more details!