How To Fix GRPG110 - An unique assignment to a grouping WBS element is not possible

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 110

• Message text: An unique assignment to a grouping WBS element is not possible

What causes this issue?

WBS element &v1& could not be assigned uniquely to a grouping WBS
element. &v1& has been assigned to several grouping elements
simultaneously with the same validity (plant/MRP group).

System Response

INCLUDE NA_ALLG_NOVERARBEITUNG OBJECT DOKU ID TX

How to fix this error?

Check the entries for WBS element in the assignment table and make sure
that all the grouping WBS elements, to which &v1& has been assigned,
differ in the validity table in their assignment to a plant/MRP group.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GRPG110 - An unique assignment to a grouping WBS element is not possible ?

  The SAP error message GRPG110 indicates that there is an issue with the assignment of a grouping Work Breakdown Structure (WBS) element. This error typically arises when you attempt to assign a WBS element to a grouping that already has an existing assignment, which violates the uniqueness constraint for that grouping.
  Cause:
  
  Duplicate Assignment: The most common cause of this error is that the WBS element you are trying to assign is already assigned to another grouping WBS element.
  Incorrect Configuration: There may be configuration settings in the system that restrict the assignment of WBS elements to groupings.
  Data Integrity Issues: There could be inconsistencies in the data that prevent the assignment from being processed correctly.
  
  Solution:
  
  Check Existing Assignments: Verify if the WBS element you are trying to assign is already assigned to another grouping. You can do this by checking the existing assignments in the WBS element master data.
  Remove Existing Assignment: If the WBS element is already assigned to another grouping and you want to change it, you will need to remove the existing assignment before making a new one.
  Review Configuration: Check the configuration settings related to WBS elements and groupings in your SAP system. Ensure that the settings allow for the desired assignments.
  Data Consistency Check: Run data consistency checks to identify any issues with the WBS elements or groupings that may be causing the error.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on managing WBS elements and groupings.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like CJ20N (Project Builder) or CJ02 (Change Project) to manage WBS elements and their assignments.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  User Authorization: Ensure that you have the necessary authorizations to make changes to WBS elements and their assignments.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in project systems (PS) to further investigate the problem.