How To Fix GP003 - Key & was already blocked

GP003 - Overview

• Message type: E = Error

• Message class: GP - FI-SL and CO planning

• Message number: 003

• Message text: Key & was already blocked

What causes this issue?

An internal error has occurred.

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?

This message does not affect you.

Error message extract from SAP system. Copyright SAP SE.

GP003 - Details

• The SAP error message GP003 ("Key & was already blocked") typically occurs in the context of SAP's Global Payroll module. This error indicates that a specific key (such as an employee's payroll record or a related data entry) is already in a blocked state, preventing further processing or modifications.
  Causes:
  
  Concurrent Processing: The key may be locked due to another user or process currently accessing or modifying the same data.
  Manual Blocking: The key may have been manually blocked by a user or through a specific business process (e.g., during a payroll run).
  System Errors: There may be underlying system issues or inconsistencies that have led to the key being marked as blocked.
  
  Configuration Issues: Incorrect configuration settings in the payroll module could lead to keys being blocked unintentionally.
  
  Solutions:
  
  Check for Locks: Use transaction codes like SM12 (to check for locks) to see if another user or process is currently using the key. If so, you