How To Fix OO783 - The type information does not contain the interface of an event

SAP Error Message - Details

• Message type: E = Error

• Message class: OO - Class Builder/API

• Message number: 783

• Message text: The type information does not contain the interface of an event

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message OO783 - The type information does not contain the interface of an event ?

  The SAP error message OO783, "The type information does not contain the interface of an event," typically occurs in the context of ABAP programming when there is an issue with event handling in classes or interfaces. This error indicates that the system is unable to find the expected event interface in the type information of a class or interface.
  Cause:
  
  Missing Event Interface: The class or interface that is supposed to handle an event does not implement the required event interface.
  Incorrect Type Declaration: The type declaration for the event handler is incorrect or does not match the expected signature.
  Inheritance Issues: If the class is supposed to inherit from a superclass that defines the event, but it does not properly inherit or implement the event interface.
  Changes in Interface: If the interface has been changed or modified, and the implementing class has not been updated accordingly.
  
  Solution:
  
  
  Check Event Interface Implementation:
  
  Ensure that the class or interface that is supposed to handle the event correctly implements the event interface.
  You can do this by checking the class definition in the ABAP Workbench (SE80 or SE24).
  
  
  
  Correct Type Declarations:
  
  Verify that the type declarations for the event handlers match the expected signatures defined in the event interface.
  Make sure that the parameters and return types are correctly defined.
  
  
  
  Review Inheritance:
  
  If the class is inheriting from a superclass, ensure that the superclass correctly defines the event and that the subclass properly inherits it.
  Check for any missing or incorrect method implementations in the subclass.
  
  
  
  Update Implementations:
  
  If the event interface has been modified, update all implementing classes to ensure they conform to the new definition.
  
  
  
  Check for Syntax Errors:
  
  Look for any syntax errors in the class or interface definitions that might prevent the system from recognizing the event interface.
  
  
  
  Recompile the Classes:
  
  Sometimes, recompiling the classes or interfaces can resolve issues related to type information. You can do this by activating the objects in the ABAP Workbench.
  
  
  
  Related Information:
  
  ABAP Workbench (SE80): Use this tool to navigate and manage your ABAP objects, including classes and interfaces.
  Class Builder (SE24): This transaction allows you to create and modify classes and interfaces, where you can check event definitions and implementations.
  Event Handling in ABAP: Familiarize yourself with how events are defined and handled in ABAP, including the use of EVENTS and RAISE statements.
  
  If the issue persists after following these steps, consider checking SAP Notes or reaching out to SAP support for further assistance.