How To Fix CL186 - Deletion of class is not allowed because of assignment with ECM

CL186 - Overview

• Message type: E = Error

• Message class: CL - Classification

• Message number: 186

• Message text: Deletion of class is not allowed because of assignment with ECM

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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CL186 - Details

• The SAP error message CL186 indicates that you are trying to delete a class that is currently assigned to an Enterprise Component Model (ECM). This restriction is in place to maintain the integrity of the system, as classes that are part of an ECM may be referenced in various places, and deleting them could lead to inconsistencies or errors in the application.
  
  Cause:
  The primary cause of this error is that the class you are attempting to delete is still being used or referenced within an ECM. This could be due to:
  
  The class being part of a package that is assigned to an ECM.
  The class being used in other objects or components that are part of the ECM.
  
  
  Solution:
  To resolve this error, you need to ensure that the class is no longer associated with the ECM. Here are the steps you can take:
  
  
  Check Assignments: 
  
  Use transaction code SE80 (Object Navigator) or SE11 (Data