How To Fix CL789 - Class & cannot have different hierarchy levels

CL789 - Overview

• Message type: E = Error

• Message class: CL - Classification

• Message number: 789

• Message text: Class & cannot have different hierarchy levels

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CL789 - Class & cannot have different hierarchy levels ?

  The SAP error message CL789 indicates that there is an issue with the class hierarchy in the classification system. Specifically, it means that the class you are trying to create or modify cannot have different hierarchy levels. This typically occurs when you are trying to assign a class to a hierarchy that does not match the expected structure.
  
  Cause:
  
  Hierarchy Level Mismatch: The class you are trying to assign is at a different hierarchy level than what is allowed. For example, you might be trying to assign a subclass to a superclass that is not in the same hierarchy level.
  Incorrect Class Type: The class type you are using may not support the hierarchy structure you are trying to implement.
  
  Configuration Issues: There may be configuration settings in the classification system that are not set up correctly, leading to this error.
  
  
  Solution:
  
  Check Class Hierarchy: Review the class hierarchy you are working with. Ensure that the