How To Fix WT745 - Could not lock recipient &

SAP Error Message - Details

• Message type: E = Error

• Message class: WT - Retail: Replenishment

• Message number: 745

• Message text: Could not lock recipient &

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WT745 - Could not lock recipient & ?

  SAP Error Message:
  
  WT745 - Could not lock recipient &
  
  Cause:
  The error message WT745 occurs in SAP Workflow when the system tries to lock a workflow recipient (user, organizational unit, or role) but fails. This usually happens because the recipient is currently locked by another process or user, or there is a database lock contention on the recipient's data.
  In SAP Workflow, locking recipients is necessary to ensure consistency when assigning tasks or updating workflow container data. If the lock cannot be obtained, the workflow cannot proceed with the assignment or update, resulting in this error.
  
  Common Scenarios Leading to WT745:
  
  Another workflow or process is currently updating the same recipient.
  A long-running transaction or batch job holds a lock on the recipient.
  Database lock contention due to high system load or deadlocks.
  Inconsistent or corrupted lock entries in the database.
  Network or system performance issues causing lock timeouts.
  
  
  Solution / How to Resolve:
  
  
  Wait and Retry:
  
  Since locks are usually short-lived, waiting a few moments and then retrying the operation may resolve the issue.
  
  
  Check for Long-Running Processes:
  
  Use transaction SM12 (Lock Entries) to check if there are any locks on the recipient object.  
  
  Look for locks related to the user or organizational object causing the problem.  
  If safe, you can manually delete stale locks here.
  
  
  
  Analyze Workflow Logs:
  
  Use transaction SWI1 or SWI2_FREQ to analyze workflow logs and identify which workflow or process is causing the lock contention.
  
  
  Check System Performance:
  
  High system load or database contention can cause lock timeouts. Monitor system performance and database locks using SM50, SM66, and ST04.
  
  
  Review Custom Code or Enhancements:
  
  If custom workflow logic or user-exits are involved, ensure they do not hold locks unnecessarily or cause deadlocks.
  
  
  SAP Notes and Patches:
  
  Check SAP Support Portal for any relevant SAP Notes addressing WT745 or workflow locking issues. Applying patches or kernel updates may help.
  
  
  
  Related Information:
  
  Transaction SM12: Display and manage lock entries.
  Transaction SWI1: Workflow log analysis.
  Transaction SWI2_FREQ: Workflow task frequency and status.
  SAP Note Search: Search for "WT745" or "Could not lock recipient" on SAP ONE Support Launchpad.
  Workflow Locking Mechanism: SAP Workflow uses lock objects like SWWLREC to lock recipients during task assignment.
  
  
  Summary:
  
  Cause: Lock contention on workflow recipient during task assignment.
  Solution: Check and clear locks in SM12, wait and retry, analyze workflow logs, monitor system performance, and apply SAP Notes if available.
  
  If the problem persists after these steps, consider involving your Basis team or SAP Support for deeper analysis.