How To Fix ARUN_MAIN084 - Item &1 is assigned and will be unassigned if you delete sch. line &2

ARUN_MAIN084 - Overview

• Message type: E = Error

• Message class: ARUN_MAIN -

• Message number: 084

• Message text: Item &1 is assigned and will be unassigned if you delete sch. line &2

What causes this issue?

The material is relevant to Supply Assignment (ARun) and an assignment
exists for this document item.
The document item is will be unassigned for one of the following
reasons:
You have defined the Customization for the document item under
<LS>Cross-Application Components > Advanced Available-to-Promise (aATP)
> Supply Assignment (ARun) > Cross-Applications > Purchase Order
Handling</>, changing the document item will unassign the order. You
have set the field check as W = Warnings Before an Order is Unassigned.
You have not defined a rule to unassign orders under
<LS>Cross-Application Components > Advanced Available-to-Promise (aATP)
> Supply Assignment (ARun) > Cross-Applications > Purchase Order
Handling</>. The item will be unassigned automatically.

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 rules to unassign orders for an application type in Customizing
under <LS>Cross-Application Components > Advanced Available-to-Promise
(aATP) > Supply Assignment (ARun) > Cross-Applications</>.
By defining a rule to unassign orders, you specify exactly how the
system should react when an application type is modified (for example,
change in requirement date, goods receipt date, plant, storage location,
and so on).
You set the appropriate fields listed in the application type in
Customizing. For field checks, you can assign one of the following
options.
N = No Action
W = Warnings Before an Order is Unassigned
E = Change Not Permitted
Depending on the selected parameter, the system decides how and when the
quantities should be unassigned.

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_MAIN084 - Item &1 is assigned and will be unassigned if you delete sch. line &2 ?

  The SAP error message ARUN_MAIN084 indicates that there is an issue with the assignment of an item in a scheduling agreement. Specifically, it means that the item you are trying to delete is currently assigned to a scheduling line, and if you proceed with the deletion, the item will be unassigned.
  
  Cause:
  
  Item Assignment: The item you are trying to delete is linked to a scheduling line in the scheduling agreement. This means that the system recognizes that there is a dependency between the item and the scheduling line.
  Data Integrity: SAP enforces data integrity rules to ensure that items and scheduling lines are correctly maintained. Deleting a scheduling line that is still in use can lead to inconsistencies in the data.
  
  
  Solution:
  
  Check Assignments: Before deleting the scheduling line, check the assignments of the item. You can do this by navigating to the scheduling agreement and reviewing the items and their corresponding scheduling lines.
  Unassign