How To Fix WL029 - Work queue cannot be executed

SAP Error Message - Details

• Message type: E = Error

• Message class: WL - Workflow: run-time messages

• Message number: 029

• Message text: Work queue cannot be executed

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message WL029 - Work queue cannot be executed ?

  SAP Error Message:
  
  WL029 - Work queue cannot be executed
  
  Cause:
  The error message WL029 typically occurs when the SAP system tries to process a work queue that is either not properly defined, inactive, or has encountered an issue preventing its execution. This can happen due to:
  
  The work queue is not active or has been deleted.
  The work queue is locked or currently being processed by another job.
  Incorrect or missing configuration in the work queue setup.
  The work process or background job responsible for processing the queue is not running or has terminated unexpectedly.
  Authorization issues preventing the execution of the work queue.
  
  
  Solution:
  To resolve the WL029 error, you can perform the following steps:
  
  
  Check Work Queue Status:
  
  Use transaction SMQ1 (Outbound Queue) or SMQ2 (Inbound Queue) depending on the queue type.
  Verify if the queue is active and not in a locked or error state.
  If the queue is locked, try to unlock it or restart the processing.
  
  
  
  Activate the Work Queue:
  
  Ensure the work queue is active in the system.
  Use transaction SMQS to check and activate queues if necessary.
  
  
  
  Check Background Jobs:
  
  Verify that the background job or work process responsible for processing the queue is running.
  Use transaction SM37 to check job status.
  Restart the job if it has stopped or failed.
  
  
  
  Check for Locks:
  
  Use transaction SM12 to check for any locks on the queue objects.
  Remove stale locks if found.
  
  
  
  Review Configuration:
  
  Check the configuration of the work queue in the relevant customizing transactions.
  Ensure all required parameters and settings are correctly maintained.
  
  
  
  Authorization Check:
  
  Verify that the user or process executing the queue has the necessary authorizations.
  
  
  
  System Logs and Dumps:
  
  Check system logs (transaction SM21) and short dumps (transaction ST22) for related errors that might give more insight.
  
  
  
  Restart the Work Process or System:
  
  If the issue persists, consider restarting the work process or the SAP system to clear any stuck processes.
  
  
  
  
  Related Information:
  
  
  Work Queues in SAP: Work queues are used to process asynchronous tasks in the background, such as IDoc processing, ALE distribution, or other asynchronous communication.
  
  
  Transactions:
  
  SMQ1 - Outbound Queue Monitor
  SMQ2 - Inbound Queue Monitor
  SMQS - Queue Status
  SM12 - Lock Entries
  SM37 - Job Monitoring
  SM21 - System Log
  ST22 - ABAP Runtime Errors
  
  
  
  Notes and Documentation:
  
  Check SAP Notes related to work queue errors for specific patches or known issues.
  Review SAP Help Portal documentation on ALE and work queue processing.
  
  
  
  
  If after these steps the problem remains unresolved, consider raising a support ticket with SAP, providing detailed logs and system information.