How To Fix EU220 - Function & is currently locked (it is being edited)

EU220 - Overview

• Message type: E = Error

• Message class: EU - Development Environment

• Message number: 220

• Message text: Function & is currently locked (it is being edited)

Self-Explanatory Message

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EU220 - Details

• The SAP error message EU220 indicates that a function module or a program is currently locked because it is being edited by another user. This typically occurs in the ABAP Workbench when multiple users attempt to edit the same object simultaneously.
  
  Cause:
  
  Concurrent Editing: Another user has opened the function module or program for editing, which locks it to prevent conflicting changes.
  Session Timeout: Sometimes, a session may not release the lock properly if a user exits unexpectedly or if there is a timeout.
  Transport Requests: If the object is part of a transport request, it may be locked for changes until the transport is released.
  
  
  Solution:
  
  Wait and Retry: The simplest solution is to wait until the other user has finished editing the function/module and then try again.
  Check Lock Entries: You can check who is currently locking the object using transaction code SM12. This transaction allows you to view and manage lock entries.
  Enter the object