How To Fix LTRS051 - Worker &1 is blocked

SAP Error Message - Details

• Message type: E = Error

• Message class: LTRS - Resource Package

• Message number: 051

• Message text: Worker &1 is blocked

What causes this issue?

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

System Response

How to fix this error?

Warehouse manager can unblock this worker from the TRM Monitor.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message LTRS051 - Worker &1 is blocked ?

  The SAP error message LTRS051 indicates that a worker (in this case, represented by &1) is blocked. This typically occurs in the context of SAP's Logistics Execution (LE) or Warehouse Management (WM) modules, where certain processes or transactions cannot proceed due to the worker's status.
  Cause:
  The worker may be blocked for several reasons, including but not limited to:
  
  Blocked Status: The worker may have been manually set to a blocked status in the system.
  Inactivity: The worker has not been active for a certain period, leading to an automatic block.
  Errors in Master Data: There may be issues with the worker's master data, such as missing or incorrect information.
  System Configuration: Certain configurations in the system may lead to workers being blocked under specific conditions.
  
  Solution:
  To resolve the LTRS051 error, you can take the following steps:
  
  
  Check Worker Status:
  
  Navigate to the worker's master data in the SAP system.
  Verify if the worker is indeed blocked. If so, you may need to unblock the worker.
  
  
  
  Unblock the Worker:
  
  If the worker is blocked, you can change the status to active. This is typically done in the worker's master data screen (transaction code: LT03, LT12, or similar depending on your configuration).
  
  
  
  Review Master Data:
  
  Ensure that all required fields in the worker's master data are filled out correctly.
  Check for any inconsistencies or missing information that could lead to the worker being blocked.
  
  
  
  Consult with System Administrator:
  
  If you are unable to unblock the worker or if the issue persists, consult with your SAP system administrator or support team. They may have additional insights or access to logs that can help diagnose the issue.
  
  
  
  Check Configuration Settings:
  
  Review any relevant configuration settings in the SAP system that may affect worker statuses. This may include settings related to inactivity, automatic blocking, or other business rules.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as LT03 (Create Transfer Order), LT12 (Confirm Transfer Order), and others that may be relevant to your warehouse operations.
  SAP Notes: Check SAP Notes for any known issues or patches related to the LTRS051 error. SAP frequently updates its knowledge base with solutions to common problems.
  Documentation: Review SAP documentation related to Warehouse Management and Logistics Execution for more context on worker management and error handling.
  
  By following these steps, you should be able to identify the cause of the LTRS051 error and take appropriate action to resolve it.