How To Fix /SCWM/DELIVERY351 - Information about locking conflicts

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/DELIVERY -

• Message number: 351

• Message text: Information about locking conflicts

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/DELIVERY351 - Information about locking conflicts ?

  The SAP error message /SCWM/DELIVERY351 typically indicates that there are locking conflicts in the system related to delivery processing in the Extended Warehouse Management (EWM) module. This error can occur when multiple users or processes attempt to access or modify the same data simultaneously, leading to a situation where one process is waiting for a lock to be released by another.
  Cause:
  
  Concurrent Access: Multiple users or background jobs trying to access the same delivery or warehouse task at the same time.
  Long-Running Transactions: A transaction that takes a long time to complete can hold locks longer than expected, causing other transactions to wait.
  System Performance Issues: High system load or performance issues can exacerbate locking conflicts.
  Configuration Issues: Incorrect configuration of the EWM system or the underlying database can lead to locking problems.
  
  Solution:
  
  Identify the Lock: Use transaction SM12 to check for existing locks. You can see which user or process is holding the lock and what object is being locked.
  Release Locks: If you identify a lock that is no longer needed, you can manually release it from SM12. However, be cautious when doing this, as it may disrupt the user or process holding the lock.
  Optimize Transactions: Review and optimize long-running transactions to ensure they complete quickly and release locks in a timely manner.
  Increase System Resources: If the system is under heavy load, consider increasing resources (CPU, memory) or optimizing database performance.
  Review Configuration: Check the configuration of your EWM system to ensure it is set up correctly and efficiently.
  Batch Processing: If applicable, consider scheduling batch jobs during off-peak hours to reduce contention for locks.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (for lock entries), SM21 (for system logs), and ST22 (for dumps) to diagnose issues.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide patches related to locking conflicts in EWM.
  Performance Monitoring: Use tools like ST03N to monitor system performance and identify bottlenecks that may lead to locking issues.
  User Training: Ensure that users are trained on best practices for using the EWM system to minimize locking conflicts.
  
  By following these steps, you can address the locking conflicts indicated by the /SCWM/DELIVERY351 error message and improve the overall performance of your SAP EWM system.