How To Fix WGDS_PROCESS673 - State of daemon processing could not be changed to &1 due to lock

SAP Error Message - Details

• Message type: E = Error

• Message class: WGDS_PROCESS - Global data synchronisation

• Message number: 673

• Message text: State of daemon processing could not be changed to &1 due to lock

Self-Explanatory Message

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• What is the cause and solution for SAP error message WGDS_PROCESS673 - State of daemon processing could not be changed to &1 due to lock ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WGDS_PROCESS673
  
  Text: State of daemon processing could not be changed to &1 due to lock
  
  Cause:
  This error occurs when the system tries to change the status (state) of a daemon process (background process or a workflow daemon) but cannot do so because the relevant database record or object is locked by another process. Locks in SAP are used to prevent concurrent updates to the same data, ensuring data consistency.
  In this case, the daemon processing status update is blocked because another process holds a lock on the same resource, preventing the status change.
  
  Explanation:
  
  Daemon processes in SAP Workflow or other background processing components have states that indicate their current status (e.g., running, stopped, waiting).
  When the system attempts to update the state of a daemon, it needs to acquire a lock on the corresponding database entry.
  If another process has already locked this entry (for example, another instance of the daemon or a related process), the system cannot update the state and throws this error.
  This is a typical concurrency control mechanism to avoid inconsistent or conflicting updates.
  
  
  Solution:
  
  
  Wait and Retry:
  
  Often, the lock is temporary. Wait a few moments and retry the operation. The lock might be released shortly.
  
  
  Check for Long-Running or Stuck Processes:  
  
  Use transaction SM12 to check for lock entries related to the daemon or workflow processes.
  Identify if there are any long-running or stuck processes holding the lock.
  If a lock is held by a process that is no longer active or stuck, you may need to manually delete the lock (with caution).
  
  
  
  Check Daemon Status and Logs:  
  
  Use transaction SWUD or SWI1 to check the status of workflow daemons.
  Review system logs (transaction SM21) and developer traces (transaction ST11) for related errors or issues.
  
  
  
  Restart Daemon or Work Process:  
  
  Sometimes restarting the workflow daemon or the relevant work process can clear locks and resolve the issue.
  Use transaction SWU3 to check workflow configuration and restart daemons if necessary.
  
  
  
  Check for System Performance Issues:  
  
  High system load or performance bottlenecks can cause processes to hold locks longer than usual.
  Analyze system performance and optimize if needed.
  
  
  
  Apply SAP Notes:  
  
  Check SAP Support Portal for any relevant SAP Notes related to WGDS_PROCESS673 or daemon locking issues.
  Apply recommended patches or corrections if available.
  
  
  
  
  Related Information:
  
  Transaction SM12: Display and manage lock entries.
  Transaction SWUD: Workflow daemon administration.
  Transaction SWI1: Workflow log display.
  Transaction SM21: System log.
  Transaction ST22: ABAP runtime errors.
  Transaction ST11: Developer traces.
  SAP Notes and KBAs related to workflow daemon locking issues.
  
  
  Summary:
  The error WGDS_PROCESS673 indicates a concurrency issue where the daemon process state cannot be updated due to a lock held by another process. The resolution involves identifying and clearing the lock, checking for stuck or long-running processes, and possibly restarting the daemon or work processes. Monitoring system performance and applying SAP Notes can also help prevent recurrence.
  
  If you need help with specific steps or further troubleshooting, please provide details about your SAP system version and the context in which the error occurs.