Item Master Conflict - Moving Items from One Master Organization to Another

Hello Community,

We are facing a critical issue during the setup of a new Master Organization and are looking for advice on the best practice or a potential workaround.

The Situation:

1. We created a New Master Organization (Master Org B).
2. During the item import process into Master Org B, 72 items failed with the error indicating they "already exist."
3. We investigated and found these 72 items are currently associated with an Existing Master Organization (Master Org A) and are used in two inventory organizations that report to Master Org A.

The Goal:

We need to define these specific 72 items under our New Master Organization (Master Org B)