How To Fix WEBDYNPRO_RT003 - Component & does not implement interface &

SAP Error Message - Details

• Message type: E = Error

• Message class: WEBDYNPRO_RT - Message class of Web Dynpro runtime

• Message number: 003

• Message text: Component & does not implement interface &

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WEBDYNPRO_RT003 - Component & does not implement interface & ?

  SAP Error Message:
  
  WEBDYNPRO_RT003 Component & does not implement interface &
  
  Cause:
  This error occurs in SAP Web Dynpro when a component is expected to implement a specific interface, but it does not. The system tries to cast or use the component as if it implements the interface, but since the component class does not implement the required interface, the runtime throws this error.
  Typical scenarios include:
  
  A Web Dynpro component is assigned or referenced where an interface implementation is mandatory.
  The component controller or window controller is expected to implement a certain interface but does not.
  Custom components or standard components are used incorrectly without implementing required interfaces.
  
  
  Solution:
  
  
  Check the Component Implementation:
  
  Open the Web Dynpro component in the SAP Web Dynpro Explorer.
  Go to the component's properties or the ABAP class behind the component.
  Verify if the component class implements the required interface mentioned in the error message.
  
  
  
  Implement the Interface:
  
  If the component does not implement the interface, you need to implement it.
  In the ABAP class editor, add the interface to the class's INTERFACES section.
  Implement all required methods of the interface.
  
  
  
  Adjust the Usage:
  
  If the component is not supposed to implement the interface, check the code or configuration where the component is used.
  Ensure that the component is not being cast or assigned to a variable of the interface type.
  Correct the assignment or usage to match the actual component type.
  
  
  
  Rebuild and Test:
  
  After implementing the interface or correcting the usage, activate the component.
  Test the Web Dynpro application again to confirm the error is resolved.
  
  
  
  
  Related Information:
  
  
  Interface Implementation in Web Dynpro:
  
  Web Dynpro components can implement interfaces to provide specific functionality or to be used polymorphically. For example, a component controller might implement an interface to be used in a generic context.
  
  
  Common Interfaces:
  
  Some standard interfaces are used in Web Dynpro for event handling, navigation, or integration with other components.
  
  
  Debugging Tips:  
  
  Use the debugger to check the runtime type of the component.
  Check the stack trace to find where the interface casting or usage happens.
  Review the Web Dynpro component's metadata and ABAP class.
  
  
  
  SAP Notes and Documentation:
  
  Search SAP Notes for WEBDYNPRO_RT003 for any specific patches or known issues related to your SAP version.
  
  
  
  Summary:
  The error WEBDYNPRO_RT003 Component & does not implement interface & means the component is missing the required interface implementation. To fix it, implement the interface in the component's ABAP class or correct the usage so that the component is not expected to implement that interface.
  
  If you provide the exact component name and interface name from the error message, I can help with more specific instructions.