How To Fix GPDPEG304 - InProc: Replen. &3 cannot be assigned (Parent: &2) - Group missing

GPDPEG304 - Overview

• Message type: E = Error

• Message class: GPDPEG - A&D GPD message classed used by Pegging only

• Message number: 304

• Message text: InProc: Replen. &3 cannot be assigned (Parent: &2) - Group missing

What causes this issue?

Grouping WBS element is missing on requirement.
Plant: &V1&
Receiving replenishment object: &V2&
Sending replenishment object: &V3&
LMG: &V4&

System Response

Replenishment cannot be assigned.

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.

GPDPEG304 - Details

• The SAP error message GPDPEG304 indicates that there is an issue with the assignment of a replenishment group in the context of a planning scenario. Specifically, the error states that a replenishment group cannot be assigned because the parent group is missing. This typically occurs in the context of SAP's Advanced Planning and Optimization (APO) or similar modules where planning and replenishment processes are managed.
  
  Cause:
  
  
  Missing Parent Group: The error suggests that the replenishment group you are trying to assign does not have a valid parent group. This could be due to:
  
  The parent group not being defined in the system.
  The parent group being inactive or deleted.
  Incorrect configuration or settings in the planning hierarchy.
  
  
  
  
  Configuration Issues: There may be issues with the configuration of the planning area or the master data related to the replenishment groups.
  
  
  Data Inconsistencies: There could be inconsistencies in the master data or planning data that prevent the assignment from