I have a paid app that has been purchased by 100 users.
In a new update I want to make the app "free" but offering only 10% of the content.
In the app I want to offer an in-app purchase (add-on) that gives full access to the app.
My question is, how can I directly give full access to the 100 users who paid for the application in the initial version?
Greetings and thanks.