How To Fix OO_SOURCE_BASED015 - The class &1 has to be locked before it can be stored

OO_SOURCE_BASED015 - Overview

• Message type: E = Error

• Message class: OO_SOURCE_BASED - WB - Class Builder - Messages for the source-b. Class Editor

• Message number: 015

• Message text: The class &1 has to be locked before it can be stored

Self-Explanatory Message

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OO_SOURCE_BASED015 - Details

• The SAP error message OO_SOURCE_BASED015 indicates that a class must be locked before it can be stored. This typically occurs when you are trying to modify or save a class in the ABAP Workbench (SE80 or SE24) without having the necessary lock on the object.
  
  Cause:
  
  Object Locking Mechanism: SAP uses a locking mechanism to prevent multiple users from making changes to the same object simultaneously. If the class you are trying to modify is not locked, you will encounter this error.
  Concurrent Access: Another user or process may have the class locked, preventing you from saving your changes.
  Transport Request: If the class is part of a transport request, it may need to be locked in the context of that transport.
  
  
  Solution:
  
  
  Lock the Class: 
  
  Before making changes, ensure that the class is locked. You can do this by navigating to the class in the ABAP Workbench and attempting to edit it. The system should