How To Fix WRF_AT_GENERATE027 - Server group does not exist, therefore processing with an empty group

SAP Error Message - Details

• Message type: E = Error

• Message class: WRF_AT_GENERATE - Messages: Allocation Table Generation RTFASH/Ordering

• Message number: 027

• Message text: Server group does not exist, therefore processing with an empty group

What causes this issue?

An error occured while determining the existing resources for the server
group specified on the selection screen.
You entered a server group that does not exist on the selection screen.
In this particular case, processing (including the new resource
determination) takes place with an empty server group. This is as if you
did not specifiy a server group on the selection screen.

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?

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_AT_GENERATE027 - Server group does not exist, therefore processing with an empty group ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WRF_AT_GENERATE027: Server group does not exist, therefore processing with an empty group
  
  Cause:
  This error occurs when the system tries to access or process a server group that is not defined or does not exist in the SAP system. Server groups are used in SAP to group application servers for workload distribution, background job processing, or specific task execution.
  Common causes include:
  
  The server group name referenced in the configuration or job does not exist.
  The server group was deleted or not created properly.
  Incorrect or outdated configuration in the workload management or background job settings.
  Transport or system copy issues where server group definitions were not transported or set up correctly.
  
  
  Solution:
  
  
  Check Server Group Definition:
  
  Go to transaction SM61 or SMMS (depending on SAP version) to check the existing server groups.
  Verify if the server group mentioned in the error exists.
  
  
  
  Create or Correct Server Group:
  
  If the server group does not exist, create it using the appropriate transaction (e.g., SM61 or SMMS).
  Ensure the server group contains the correct application servers.
  
  
  
  Update Configuration:
  
  If the server group name is incorrect in the job or configuration, update it to the correct existing server group.
  Check background job definitions or workload management settings that reference the server group.
  
  
  
  Transport and System Copy:
  
  If this issue appeared after a transport or system copy, verify that server group definitions were included and imported correctly.
  Re-import or recreate server groups if necessary.
  
  
  
  Check Workload Management:
  
  In some cases, workload management settings (transaction SM61, SMMS, or SMGW) might need to be reviewed and adjusted.
  
  
  
  
  Related Information:
  
  
  Transactions to check server groups:
  
  SM61 - Server Group Maintenance
  SMMS - Workload Management Monitor
  SMGW - Gateway Monitor (to check server groups related to gateway)
  
  
  
  Background Jobs:
  
  Server groups are often used to define where background jobs run. Check jobs in SM37 for server group assignments.
  
  
  
  SAP Notes:
  
  Search SAP Support Portal for notes related to WRF_AT_GENERATE027 or server group issues.
  
  
  
  System Landscape:
  
  Ensure that the system landscape and server groups are consistent across development, quality, and production systems.
  
  
  
  
  Summary:
  The error WRF_AT_GENERATE027 indicates that the system is trying to process a server group that does not exist. The solution involves verifying and correcting the server group configuration, creating missing server groups, and ensuring that all references to server groups in jobs and workload management are accurate.
  
  If you provide more context (e.g., when the error occurs, transaction or process involved), I can help with more specific guidance.