How To Fix /SCWM/SHP_RCV128 - Inbound delivery/outbound delivery order &1 could not be locked

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/SHP_RCV -

• Message number: 128

• Message text: Inbound delivery/outbound delivery order &1 could not be locked

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/SHP_RCV128 - Inbound delivery/outbound delivery order &1 could not be locked ?

  The SAP error message /SCWM/SHP_RCV128 indicates that an inbound delivery or outbound delivery order could not be locked. This typically occurs in the context of the Extended Warehouse Management (EWM) module when there is an attempt to process a delivery that is already being accessed or modified by another user or process.
  Causes:
  
  Concurrent Access: Another user or process is currently accessing or modifying the same delivery document, leading to a lock situation.
  Long-running Transactions: A transaction that takes a long time to complete may hold the lock for an extended period, preventing other processes from accessing the delivery.
  System Performance Issues: High system load or performance issues can lead to delays in releasing locks.
  Database Locking Mechanisms: The underlying database may have locking mechanisms that prevent access to certain records.
  
  Solutions:
  
  Wait and Retry: If the error is due to concurrent access, waiting for a few moments and then retrying the operation may resolve the issue.
  Identify Locking Sessions: Use transaction codes like SM12 (for lock entries) to identify which user or process is holding the lock on the delivery. You can then decide whether to wait for the lock to be released or contact the user holding the lock.
  Check for Long-running Transactions: Investigate if there are any long-running transactions that may be causing the lock. You can use transaction SM66 to monitor active processes in the system.
  System Performance Tuning: If the issue is related to system performance, consider optimizing the database or application performance to reduce the likelihood of locks.
  Review Custom Code: If there are custom developments or enhancements in the system, review them to ensure they are not causing unnecessary locks.
  Consult SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SM12 (to view and delete lock entries), SM21 (to check system logs), and SM66 (to monitor active processes).
  SAP Support: If the issue persists, consider reaching out to SAP Support for further assistance, especially if it appears to be a bug or a system issue.
  Documentation: Review the SAP EWM documentation for best practices regarding handling deliveries and managing locks.
  
  By following these steps, you should be able to diagnose and resolve the issue related to the /SCWM/SHP_RCV128 error message.