How To Fix CL742 - Assignment of class "&" to class "&" deleted

CL742 - Overview

• Message type: E = Error

• Message class: CL - Classification

• Message number: 742

• Message text: Assignment of class "&" to class "&" deleted

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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CL742 - Details

• The SAP error message CL742 "Assignment of class '&' to class '&' deleted" typically occurs in the context of class hierarchies in the ABAP Object-Oriented programming environment. This error indicates that there was an attempt to assign a subclass to a superclass, but the assignment was deleted or invalidated.
  
  Cause:
  
  Invalid Class Assignment: The class assignment may have been deleted or invalidated due to changes in the class hierarchy, such as the deletion of the superclass or changes in the visibility of the classes.
  Transport Issues: If the classes were transported from one system to another, there might be inconsistencies in the class definitions between the systems.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to view or modify the class assignments.
  System Errors: There could be underlying system errors or inconsistencies in the SAP system that lead to this message.
  
  
  Solution:
  
  Check Class Hierarchy: Review the class hierarchy in the Class Builder (transaction