How To Fix WES_OUTBOUND096 - Error during start of a parallel task

SAP Error Message - Details

• Message type: E = Error

• Message class: WES_OUTBOUND - Messages for Outbound Services

• Message number: 096

• Message text: Error during start of a parallel task

What causes this issue?

An error occurred during start of a parallel task with the return code
&v1&.
Meaning of the error codes:
1 = System error
2 = Communication error
3 = Error during resource assignment
128 = Application error
255 = RFC not started

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

The following error message contains more detailed information on the
error.

System Response

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WES_OUTBOUND096 - Error during start of a parallel task ?

  SAP Error Message:
  
  WES_OUTBOUND096 - Error during start of a parallel task
  
  Cause
  This error typically occurs in the context of SAP's Warehouse Management (WM) or Extended Warehouse Management (EWM) systems when a parallel task (such as a background job or a parallel process in a workflow) fails to start properly. The reasons can include:
  
  System resource constraints: Insufficient work processes or background jobs available to start the parallel task.
  Incorrect configuration: Parallel processing settings or task definitions might be incorrect or incomplete.
  Authorization issues: The user or process starting the task lacks necessary authorizations.
  Technical issues: Problems with the communication between SAP components or with the task scheduler.
  Locking or synchronization problems: The task cannot start because of locks or dependencies on other tasks.
  Transport or patch inconsistencies: Missing notes or inconsistent system states after upgrades or transports.
  
  
  Solution
  To resolve the WES_OUTBOUND096 error, consider the following steps:
  
  
  Check System Resources:
  
  Verify that there are enough dialog and background work processes available.
  Use transaction SM50 or SM66 to monitor work processes.
  Check if the system is overloaded or if there are stuck jobs.
  
  
  
  Review Task Configuration:
  
  Check the configuration of the parallel task in the relevant customizing (e.g., in EWM or WM).
  Ensure that the task is properly defined and that all required parameters are set.
  
  
  
  Check Authorizations:
  
  Verify that the user or process initiating the task has the necessary authorizations.
  Use transaction SU53 after the error occurs to check for missing authorizations.
  
  
  
  Analyze Logs and Traces:
  
  Check the application log (SLG1) for detailed error messages related to the task.
  Review system logs (SM21) and developer traces (ST11).
  Look for any dump (ST22) related to the error.
  
  
  
  Check for Locks:
  
  Use transaction SM12 to check for locks that might prevent the task from starting.
  
  
  
  Restart or Reschedule the Task:
  
  Sometimes, simply restarting the task or rescheduling the job can resolve transient issues.
  
  
  
  Apply SAP Notes:
  
  Search the SAP Support Portal for notes related to WES_OUTBOUND096.
  Apply any relevant patches or corrections.
  
  
  
  Check Integration Points:
  
  If the task involves integration with other systems or components, verify the communication channels and interfaces.
  
  
  
  
  Related Information
  
  Context: This error is often seen in warehouse outbound processing scenarios where parallel tasks are used to improve throughput.
  Transactions to Use:
  
  SM50 / SM66 – Monitor work processes.
  SM21 – System log.
  SLG1 – Application log.
  ST22 – ABAP runtime errors.
  SM12 – Lock entries.
  SU53 – Authorization check.
  
  
  SAP Notes: Search for notes with keywords like WES_OUTBOUND096, parallel task, EWM outbound error.
  SAP Forums and OSS: Check SAP Community forums and OSS messages for similar issues and solutions.
  
  
  If the problem persists after these checks, consider raising a support ticket with SAP, providing detailed logs and system information.