How To Fix ARUN_MAIN011 - If you change &1, the confirmation will be unassigned

ARUN_MAIN011 - Overview

• Message type: E = Error

• Message class: ARUN_MAIN -

• Message number: 011

• Message text: If you change &1, the confirmation will be unassigned

What causes this issue?

The document item will be unassigned for one of the following reasons
and changing the confirmation will unassign the item:
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 <ZK>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-Application</>s.
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
If you select the <ZK>Restore </>checkbox, if you have changed or
deleted the quantity, then the confirmation stock is restored to
purchase order stock as appropriate.
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_MAIN011 - If you change &1, the confirmation will be unassigned ?

  The SAP error message ARUN_MAIN011 typically occurs in the context of the SAP Advanced Planning and Optimization (APO) module, particularly when dealing with order confirmations in the system. This message indicates that if you change a specific field (denoted by &1), the confirmation associated with that order will be unassigned. 
  
  Cause:
  The error arises when a user attempts to modify a key attribute of an order or a confirmation that is critical for maintaining the relationship between the order and its confirmation. This could happen in various scenarios, such as:
  
  Changing the order type or status.
  Modifying key fields that are linked to the confirmation process.
  Altering the planning parameters that affect how confirmations are processed.
  
  
  Solution:
  To resolve this error, consider the following steps:
  
  
  Review Changes: Before making changes to the order or confirmation, review the fields you are modifying. Ensure that the changes do not impact the confirmation process.
  
  
  Unassign Confirmation: If you need to proceed