How To Fix ARUN_MAIN024 - PO item will be unassigned if &1 is changed in confirmation

ARUN_MAIN024 - Overview

• Message type: E = Error

• Message class: ARUN_MAIN -

• Message number: 024

• Message text: PO item will be unassigned if &1 is changed in confirmation

What causes this issue?

The material is relevant to Supply Assignment (ARun) and an assignment
exists for this document item.
Item will be unassigned for one of the following reason.
Unassign rule is not defined to specify the date horizon against
Purchase order in customizing under <LS>Cross-Application Components >
Advanced Available-to-Promise (aATP) > Supply Assignment (ARun) >
Cross-Applications > Purchase Order Handling</>.
Unassign rule is defined in customizing under <LS>Cross-Application
Components > Advanced Available-to-Promise (aATP) > Supply Assignment
(ARun) > Cross-Applications > Purchase Order Handling</>. You have
created a confirmation for an assigned purchase order item with the
confirmation delivery date greater than the item delivery date.
Therefore, the assigned requirements with respect to purchase order item
is compared against the confirmation delivery date. If date reaction is
outside the specified horizon, the purchase order item is unassigned.(in
this case, only the purchase order date horizon is considered and not
the date reaction field check).

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 rule to unassign orders. You can specify how the system should
react when the document is modified (for example, change in range of
days for purchase order).
Enter an alphanumeric key (maximum of four characters) and a description
for your rule.
Check the date horizon parameters maintained and change if needed.

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_MAIN024 - PO item will be unassigned if &1 is changed in confirmation ?

  The SAP error message ARUN_MAIN024 indicates that there is an issue with a Purchase Order (PO) item during the confirmation process. Specifically, it suggests that if a certain field (denoted by &1) is changed in the confirmation, the PO item will be unassigned. This typically occurs in the context of production orders or confirmations related to goods movements.
  
  Cause:
  The error is usually triggered when:
  
  Field Change: A field that is critical for the assignment of the PO item is modified during the confirmation process. This could be a quantity, delivery date, or any other key attribute that links the confirmation to the PO.
  Data Integrity: The system is designed to maintain data integrity, and changing certain fields may lead to inconsistencies in the assignment between the confirmation and the PO.
  
  Configuration Issues: There may be configuration settings in the system that dictate how confirmations are processed and how they relate to POs.
  
  
  Solution:
  To resolve this