How To Fix WRF_REF000 - Specify server group for parallel processing

WRF_REF000 - Overview

• Message type: E = Error

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

• Message number: 000

• Message text: Specify server group for parallel processing

What causes this issue?

You want to start parallel processing, but the system needs a server
group.

System Response

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

How to fix this error?

Enter the server group for parallel processing in the corresponding
field of the selection screen.

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_REF000 - Specify server group for parallel processing ?

  The SAP error message WRF_REF000 ("Specify server group for parallel processing") typically occurs in the context of SAP's Advanced Planning and Optimization (APO) module, particularly when dealing with parallel processing of tasks. This error indicates that the system requires a server group to be defined for executing certain processes in parallel, but it has not been specified.
  
  Cause:
  
  Missing Server Group Configuration: The server group that is needed for parallel processing has not been defined in the system.
  Incorrect Settings: The settings for the parallel processing might be incorrectly configured, leading to the system not being able to identify the appropriate server group.
  Transaction or Process Context: The error may arise in specific transactions or processes where parallel processing is expected but not properly set up.
  
  
  Solution:
  To resolve the WRF_REF000 error, you can follow these steps:
  
  
  Define a Server Group:
  
  Go to the transaction code RZ12 (or RZ10 for profile parameters) to define or check the server