How To Fix N2M028 - Changing the quantity is not allowed

N2M028 - Overview

• Message type: E = Error

• Message class: N2M - Global Trade: Item Category Management

• Message number: 028

• Message text: Changing the quantity is not allowed

What causes this issue?

You want to change the quantity of item &V1&.

System Response

Associations already exist for the item. Because of these associations,
the item must have a minimum quantity of &V2& &V4&. However, you only
assigned &V3& &V4& to the item.
You cannot change the quantity.

How to fix this error?

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

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

N2M028 - Details

• The SAP error message N2M028, which states "Changing the quantity is not allowed," typically occurs in the context of inventory management or material document processing. This error can arise in various scenarios, such as during goods movements, stock transfers, or when trying to adjust quantities in a material document.
  Causes:
  
  Document Status: The document you are trying to change may be in a status that does not allow modifications. For example, if the document is already posted or has been processed further, changes to the quantity may be restricted.
  Configuration Settings: Certain configuration settings in the SAP system may restrict changes to quantities after a specific point in the process.
  Document Type Restrictions: Some document types may have inherent restrictions on changing quantities once they are created.
  User Authorizations: The user may not have the necessary authorizations to make changes to the document or material quantities.
  Business Logic: There may be business rules or logic implemented