How To Fix VN352 - Object type & is assigned to the item in application &

VN352 - Overview

• Message type: E = Error

• Message class: VN - Nachrichtensteuerung

• Message number: 352

• Message text: Object type & is assigned to the item in application &

What causes this issue?

You have entered a business object type (&V1&) consistent to the item in
the application document of application &V2&.

System Response

In system table T681Z a business object type is assigned to both the
header and the item of the application document of application &V2&.
You can enter any of the object types from the business object
repository, which have a key structure consistent with that of one of
the object types.

How to fix this error?

Make sure that the condition is related to an item in the application
document from application &V2&.

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.

VN352 - Details

• Certainly! Here's a detailed explanation for the SAP error message VN352:
  
  SAP Error Message: VN352
  Message Text:
  Object type & is assigned to the item in application &
  
  1. Cause
  This error occurs when you try to perform an operation on a purchasing document item (such as a purchase order or contract item) that already has an object of a certain type assigned to it in a specific application. 
  In SAP MM (Materials Management), certain objects (like service entry sheets, delivery notes, or inspection lots) are linked to purchasing document items. The system prevents duplicate or conflicting assignments of the same object type to the same item to maintain data consistency and integrity.
  For example, if a service entry sheet (object type 'ES') is already assigned to a purchase order item, and you try to assign another service entry sheet or a conflicting object type to the same item, the system will raise this error.
  
  2. When