How To Fix GK021 - &1 &2 is already being processed by user &3

GK021 - Overview

• Message type: E = Error

• Message class: GK - Messages for SAP Consolidation

• Message number: 021

• Message text: &1 &2 is already being processed by user &3

What causes this issue?

The object shown is already being processed and is currently locked.
Only one user can process an object at one time.

System Response

Information

Error message extract from SAP system. Copyright SAP SE.

GK021 - Details

• The SAP error message GK021 indicates that a particular document or transaction (identified by &1 and &2) is already being processed by another user (identified by &3). This typically occurs in scenarios where multiple users are trying to access or modify the same document or transaction simultaneously, leading to a lock situation.
  
  Cause:
  
  Document Locking: SAP uses a locking mechanism to prevent data inconsistencies. When a user opens a document for editing, it gets locked for that user. If another user tries to access the same document, they will encounter this error.
  Long Processing Time: If the first user takes a long time to process the document, it may lead to other users being unable to access it.
  Session Issues: Sometimes, a user may have multiple sessions open, and the document may be locked in one of those sessions.
  Background Jobs: If a background job is processing the document, it may also lead to this