How To Fix /SCWM/DS_CORE021 - Appointment &1 is locked by another application

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/DS_CORE -

• Message number: 021

• Message text: Appointment &1 is locked by another application

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/DS_CORE021 - Appointment &1 is locked by another application ?

  The SAP error message /SCWM/DS_CORE021 Appointment &1 is locked by another application typically occurs in the context of the Extended Warehouse Management (EWM) module when an appointment (for example, a delivery appointment) is being accessed or modified by multiple users or processes simultaneously. This locking mechanism is in place to prevent data inconsistencies and ensure that only one process can modify the appointment at a time.
  Cause:
  
  Concurrent Access: Another user or process is currently editing or processing the same appointment.
  Long-running Transactions: A transaction that takes a long time to complete may hold the lock longer than expected.
  System Configuration: Certain configurations or custom developments may lead to unexpected locking behavior.
  Background Jobs: Background jobs or batch processes that are accessing the same appointment can also cause this issue.
  
  Solution:
  
  Wait and Retry: If the appointment is locked by another user, wait for a few moments and then try to access it again.
  Identify the Lock: Use transaction code SM12 to check for locks in the system. You can look for the specific appointment number and see which user or process is holding the lock.
  Release the Lock: If you have the necessary authorizations, you can manually release the lock from SM12. However, be cautious with this approach as it may lead to data inconsistencies if the other process is still active.
  Check for Long-running Processes: Investigate if there are any long-running transactions or background jobs that might be holding the lock. If so, consider optimizing those processes.
  Review Custom Code: If there are custom developments that interact with appointments, review the code to ensure it handles locks appropriately.
  Consult with Basis Team: If the issue persists, consult with your SAP Basis team to check for any system-level issues or configurations that might be causing excessive locking.
  
  Related Information:
  
  Transaction Codes: 
  
  SM12: To view and manage locks.
  SM21: To check system logs for any related errors or warnings.
  ST22: To check for dumps that might provide more context on the issue.
  
  
  SAP Notes: Check for any relevant SAP Notes that might address known issues or provide patches related to locking behavior in EWM.
  Documentation: Review SAP documentation on EWM and appointment management for best practices and guidelines on handling appointments.
  
  By following these steps, you should be able to diagnose and resolve the locking issue related to the appointment in SAP EWM.