How To Fix WRF_AT008 - Enter a hierarchy ID

WRF_AT008 - Overview

• Message type: E = Error

• Message class: WRF_AT - Messages for Allocation Table RTFASH

• Message number: 008

• Message text: Enter a hierarchy ID

What causes this issue?

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

System Response

How to fix this error?

Enter a hierarchy ID for the specified hierarchy node or select a
different hierarchy node.

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_AT008 - Enter a hierarchy ID ?

  SAP Error Message:
  WRF_AT008: Enter a hierarchy ID
  
  
  Cause:
  This error occurs when a required Hierarchy ID is missing in a transaction or input screen where the system expects you to specify a hierarchy. Hierarchies are often used in SAP for organizing data structures such as organizational units, cost centers, or product groups. The system cannot proceed without this mandatory field being filled.
  
  When does it typically occur?
  
  When working with Workforce Planning (WRF) or related modules that require hierarchical data input.
  During data entry or configuration steps where a hierarchy must be selected or created.
  When importing or processing data that references a hierarchy but the hierarchy ID is not provided.
  
  
  
  Solution:
  
  
  Enter the Hierarchy ID:
  
  Identify the field labeled "Hierarchy ID" or similar on the screen.
  Enter a valid hierarchy ID that exists in the system.
  If you do not know the hierarchy ID, use the search help (F4) to find the correct one.
  
  
  
  Create a Hierarchy if it does not