How To Fix /PM0/ABB_INTERFACE004 - Category conflict between interface and implementing class

/PM0/ABB_INTERFACE004 - Overview

• Message type: E = Error

• Message class: /PM0/ABB_INTERFACE -

• Message number: 004

• Message text: Category conflict between interface and implementing class

Self-Explanatory Message

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/PM0/ABB_INTERFACE004 - Details

• The SAP error message /PM0/ABB_INTERFACE004 indicates a category conflict between an interface and its implementing class. This typically occurs in the context of ABAP programming when there is a mismatch between the expected interface and the actual implementation in the class.
  
  Cause:
  
  Mismatch in Method Signatures: The methods defined in the interface do not match the methods implemented in the class. This can include differences in parameter types, return types, or method names.
  Inconsistent Visibility: The visibility (public, protected, private) of the methods in the implementing class may not align with the interface definition.
  Incorrect Interface Implementation: The class may not be correctly implementing the interface, either by not implementing all required methods or by implementing methods that are not part of the interface.
  Changes in Interface: If the interface has been modified (e.g., methods added or changed) after the class was created, the class may not reflect these changes.
  
  
  Solution:
  
  Check Method Signatures: Review the methods