How To Fix OIJ_3WP015 - Double assignment not possible. Unassign at least one DS line item

OIJ_3WP015 - Overview

• Message type: E = Error

• Message class: OIJ_3WP - Three way pegging message class, component of TSW

• Message number: 015

• Message text: Double assignment not possible. Unassign at least one DS line item

What causes this issue?

At least one different Distribution Schedule line item has been
selected which is already assigned two a different Nomination
Simulation ID (link to OIJ_SIMID). Double assignments are not possible.

System Response

Assignment not carried out.

How to fix this error?

Unassign the specific Distribution Schedule line item(s) first.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

OIJ_3WP015 - Details

• The SAP error message OIJ_3WP015: "Double assignment not possible. Unassign at least one DS line item" typically occurs in the context of SAP Oil and Gas (OIJ) when there is an attempt to assign multiple delivery schedule (DS) line items to a single work process or operation, which is not allowed.
  
  Cause:
  
  Multiple Assignments: The error arises when there are already existing assignments for the delivery schedule line items, and the system does not allow for multiple assignments to the same work process.
  Data Integrity Rules: SAP has built-in data integrity rules that prevent double assignments to ensure that each line item is uniquely assigned to a work process.
  
  
  Solution:
  To resolve this error, you need to unassign at least one of the existing delivery schedule line items before attempting to assign a new one. Here are the steps you can follow:
  
  
  Identify Assigned Line Items:
  
  Go to the relevant transaction where you are trying to make