How To Fix ARUN_MAIN006 - Item &1 has been assigned. Maintain a rule to unassign orders.

ARUN_MAIN006 - Overview

• Message type: E = Error

• Message class: ARUN_MAIN -

• Message number: 006

• Message text: Item &1 has been assigned. Maintain a rule to unassign orders.

What causes this issue?

The item is already assigned but you have not defined a rule to unassign
orders for the sales document in Customizing under <LS>Cross-Application
Components > Advanced Available-to-Promise (aATP) > Supply Assignment
(ARun) > Cross-Applications > Sales Document Handling</>.

System Response

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

How to fix this error?

Define a deallocation rule for the sales order in Customizing under
<LS>Cross-Application Components > Advanced Available-to-Promise (aATP)
> Supply Assignment (ARun) > Cross-Applications > Sales Document
Handling</>.

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 ARUN_MAIN006 - Item &1 has been assigned. Maintain a rule to unassign orders. ?

  The SAP error message ARUN_MAIN006 indicates that a specific item (denoted by &1) has been assigned to an order, and the system is prompting you to maintain a rule to unassign orders. This error typically arises in the context of SAP Advanced Planning and Optimization (APO) or similar modules where order assignments and rules are critical for planning and execution.
  
  Cause:
  
  Order Assignment: The item in question has been assigned to an order, which may conflict with the current operation you are trying to perform (e.g., trying to unassign or reassign the item).
  Missing Rules: There may not be a defined rule in the system that allows for the unassignment of orders for that specific item.
  
  Configuration Issues: The system may not be properly configured to handle the unassignment of orders, leading to this error.
  
  
  Solution:
  
  
  Maintain Unassignment Rules:
  
  Navigate to the relevant configuration settings in SAP where you can define rules for unassigning orders.
  Create or modify