How To Fix WRF_REF046 - Task &2 for parallel processing could not be started (error number: &1)

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 046

• Message text: Task &2 for parallel processing could not be started (error number: &1)

What causes this issue?

The system tried to start a process via RFC. This try failed, returning
error code >&1<.

System Response

The system cannot process this task in parallel. Instead, the system
processes this task sequentially.

How to fix this error?

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

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 WRF_REF046 - Task &2 for parallel processing could not be started (error number: &1) ?

  The SAP error message WRF_REF046 indicates that a task for parallel processing could not be started. This error typically occurs in the context of SAP's Retail or Logistics modules, particularly when dealing with functions that require parallel processing to improve performance.
  Cause:
  The error can be caused by several factors, including:
  
  
  System Configuration Issues: The SAP system may not be configured correctly to handle parallel processing tasks. This could be due to insufficient resources or incorrect settings in the background processing configuration.
  
  
  Resource Limitations: The system may be running low on resources (e.g., memory, CPU) which prevents it from starting new parallel tasks.
  
  
  Job Scheduling Conflicts: There may be conflicts with other scheduled jobs that are consuming resources or locks that prevent the new task from starting.
  
  
  Authorization Issues: The user or process attempting to start the parallel task may not have the necessary authorizations.
  
  
  Technical Errors: There could be underlying technical issues, such as bugs in the code or problems with the database.
  
  
  Solution:
  To resolve the WRF_REF046 error, you can take the following steps:
  
  
  Check System Resources: Monitor the system's performance and resource usage. Ensure that there are enough resources available for parallel processing. You can use transaction codes like ST02 (Tune Summary) and ST03 (Workload Analysis) to analyze performance.
  
  
  Review Background Job Configuration: Check the configuration settings for background processing in transaction SM37 (Job Monitoring) and ensure that the system is set up to allow parallel processing.
  
  
  Check for Conflicting Jobs: Look for any other jobs that might be running at the same time and consuming resources. You can use transaction SM37 to view active jobs and their statuses.
  
  
  Review Authorizations: Ensure that the user or process has the necessary authorizations to start parallel tasks. You can check this in transaction SU53 (Authorization Check) after the error occurs.
  
  
  Check for System Logs: Review the system logs (transaction SM21) for any additional error messages or warnings that might provide more context about the issue.
  
  
  Consult SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that might address this specific error or provide patches or updates.
  
  
  Contact SAP Support: If the issue persists after trying the above steps, consider reaching out to SAP Support for further assistance.
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  SM37: Job Monitoring
  ST02: Tune Summary
  ST03: Workload Analysis
  SU53: Authorization Check
  SM21: System Log
  
  
  
  SAP Notes: Always check the SAP Support Portal for any specific notes related to the error message WRF_REF046, as there may be updates or patches that address known issues.
  
  
  By following these steps, you should be able to diagnose and resolve the WRF_REF046 error in your SAP system.