How To Fix CL790 - The assignment of class & to class & must have the link indicator

CL790 - Overview

• Message type: E = Error

• Message class: CL - Classification

• Message number: 790

• Message text: The assignment of class & to class & must have the link indicator

Self-Explanatory Message

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CL790 - Details

• The SAP error message CL790 indicates that there is an issue with the assignment of one class to another in the Class Builder (transaction code CL02 or CL03). Specifically, it means that the assignment of the specified class to another class requires a link indicator, which is not set.
  
  Cause:
  The error occurs when you attempt to assign a class to another class without specifying the link indicator. In SAP, when you create a class hierarchy, you need to define how classes are related to each other. The link indicator is a crucial part of this relationship, as it indicates whether the class is a subclass or a superclass.
  
  Solution:
  To resolve this error, follow these steps:
  
  
  Open Class Builder: Go to transaction code CL02 (Change Class) or CL03 (Display Class) to access the class that is causing the error.
  
  
  Check Class Assignment: Navigate to the "Class" tab and look for the section where class assignments