How To Fix SODQ416 - Queue &1 is locked by the parallel process (lock attempt &2)

SAP Error Message - Details

• Message type: E = Error

• Message class: SODQ - Operational Delta Queue

• Message number: 416

• Message text: Queue &1 is locked by the parallel process (lock attempt &2)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SODQ416 - Queue &1 is locked by the parallel process (lock attempt &2) ?

  The SAP error message SODQ416 indicates that a queue is locked by a parallel process, which means that another process is currently using the queue, preventing your process from accessing it. This can occur in various scenarios, particularly in systems that utilize asynchronous processing or background jobs.
  Cause:
  
  Concurrent Processing: The queue is being accessed by another process or job, which has locked it for its operations.
  Long-Running Jobs: A job that is taking longer than expected may hold the lock on the queue.
  Deadlocks: In some cases, a deadlock situation may arise where two processes are waiting for each other to release locks.
  System Configuration: Configuration settings related to parallel processing or queue management may lead to locking issues.
  
  Solution:
  
  Wait and Retry: Often, the simplest solution is to wait for the other process to complete its operation and then retry your action.
  Identify the Locking Process:
  
  Use transaction SM12 to check for locks in the system. You can identify which user or process is holding the lock on the queue.
  If you find a process that is holding the lock unnecessarily, you may need to investigate why it is taking so long or if it can be terminated.
  
  
  Terminate the Locking Process: If the locking process is not critical and can be safely terminated, you can do so from transaction SM37 (for background jobs) or SM12 (for locks).
  Adjust Job Scheduling: If the issue is recurring, consider adjusting the scheduling of jobs that access the same queue to avoid conflicts.
  Review System Configuration: Check the configuration settings related to parallel processing and queues to ensure they are optimized for your workload.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: To view and manage locks.
  SM37: To monitor background jobs.
  SM21: To check system logs for any related errors or warnings.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide patches related to queue management and locking.
  Performance Monitoring: Regularly monitor system performance and job execution times to identify potential bottlenecks.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or SAP support for further assistance.