How To Fix WRF_REF147 - &1 of &2 task(s) started in parallel after &3 (until &4) failed attempts

SAP Error Message - Details

• Message type: E = Error

• Message class: WRF_REF - Messages from References for Materials Without History

• Message number: 147

• Message text: &1 of &2 task(s) started in parallel after &3 (until &4) failed attempts

What causes this issue?

The system started &V1& task(s) of &V2& task(s) after &V3& (until &V4&)
failed attempts.

System Response

If a task fails to start due to a resource failure, then the system
tries to start this task again later. This message shows the number of
failed attempts..

How to fix this error?

For information only

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WRF_REF147 - &1 of &2 task(s) started in parallel after &3 (until &4) failed attempts ?

  The SAP error message WRF_REF147 indicates that a certain number of tasks (in this case, &2) that were started in parallel have failed after a specified number of attempts (from &3 to &4). This error is typically related to issues in the SAP system's background processing, particularly in the context of the SAP Retail module or related functionalities.
  Causes:
  
  System Resource Limitations: The system may be running out of resources (e.g., memory, CPU) to handle the parallel tasks.
  Configuration Issues: There may be incorrect settings in the configuration of the background jobs or parallel processing settings.
  Data Issues: The data being processed may have inconsistencies or errors that cause the tasks to fail.
  Locking Issues: There may be database locks that prevent the tasks from executing successfully.
  Authorization Issues: The user or process executing the tasks may not have the necessary authorizations to perform the actions required.
  
  Solutions:
  
  Check System Resources: Monitor the system's performance and resource usage. If necessary, allocate more resources or optimize existing ones.
  Review Job Configuration: Check the configuration of the background jobs and ensure that they are set up correctly. This includes reviewing the parallel processing settings.
  Analyze Logs: Look at the job logs and error messages for more detailed information about why the tasks failed. This can provide insights into specific data issues or errors.
  Data Validation: Validate the data being processed to ensure there are no inconsistencies or errors that could cause the tasks to fail.
  Check for Locks: Use transaction codes like SM12 to check for any locks that might be affecting the tasks. If locks are found, investigate and resolve them.
  Authorization Check: Ensure that the user or process has the necessary authorizations to execute the tasks. This may involve checking roles and permissions in the system.
  
  Related Information:
  
  Transaction Codes: Use transaction codes like SM37 (to monitor background jobs), SM21 (to check system logs), and ST22 (to analyze dumps) for troubleshooting.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error message or provide patches and updates.
  Documentation: Review SAP documentation related to background processing and the specific module you are working with (e.g., SAP Retail).
  
  If the issue persists after trying the above solutions, it may be beneficial to engage SAP support for further assistance.