How To Fix CL518 - Class type & : class & locked by user &

CL518 - Overview

• Message type: E = Error

• Message class: CL - Classification

• Message number: 518

• Message text: Class type & : class & locked by user &

What causes this issue?

You want to edit the allocation to a class. This requires that the
class is not changed in the meantime. However, another user is already
processing the class or its allocation.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Try again later.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CL518 - Class type & : class & locked by user & ?

  The SAP error message CL518 indicates that a class type (usually a class in ABAP) is locked by a specific user. This typically occurs when a user is editing or has opened a class for modification, preventing other users from making changes to it simultaneously. Here’s a breakdown of the cause, potential solutions, and related information:
  
  Cause:
  
  User Lock: The class is currently being edited by another user, which locks the class for editing.
  Transaction in Progress: A transaction that involves the class is still in progress, leading to a lock.
  System Error: Occasionally, a system error or an improper termination of a session can leave a lock in place.
  
  
  Solution:
  
  Wait for Release: If the class is locked by another user, the simplest solution is to wait until that user has finished their work and released the lock.
  Identify the Lock:
  Use transaction SM12 to view and manage locks. You can check which user has locked the