How To Fix GRPG123 - This assignment causes an inconsistency in the group hierarchy

SAP Error Message - Details

• Message type: E = Error

• Message class: GRPG - Grouping/Pegging for Individual Project Planning

• Message number: 123

• Message text: This assignment causes an inconsistency in the group hierarchy

What causes this issue?

Recursive group structures are not allowed. You treis to assign a
grouping WBS element to another grouping WBS element, which itself is
assigned to the first grouping WBS element.

System Response

INCLUDE NA_ALLG_NOVERARBEITUNG OBJECT DOKU ID TX

How to fix this error?

Check the assignement of the WBS elements to grouping WBS elements and
make sure that no grouping WBS element is assigned to another grouping
WBS element, which itself is assigned to the first grouping WBS element
(also via several steps).

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GRPG123 - This assignment causes an inconsistency in the group hierarchy ?

  The SAP error message GRPG123, which states "This assignment causes an inconsistency in the group hierarchy," typically occurs in the context of managing group hierarchies in SAP, particularly in modules like SAP Controlling (CO) or SAP Financial Accounting (FI). This error indicates that the assignment you are trying to make violates the rules of the hierarchy structure defined in the system.
  Causes:
  
  Circular References: The assignment may create a circular reference in the hierarchy, where a group references itself either directly or indirectly.
  Invalid Parent-Child Relationships: The assignment may violate the defined parent-child relationships in the hierarchy. For example, trying to assign a child node to a parent that is not valid.
  Hierarchy Level Restrictions: The assignment may not comply with the restrictions on hierarchy levels, such as trying to assign a group at a level that is not allowed.
  Missing or Inactive Nodes: The group you are trying to assign may be inactive or