Are subscriptions Product ID unique per app or per developer account?

Hello,

I'm trying to create a subscription for one of my apps.

When I specify the Product ID yearly_3, I get the following error message: The Product ID you entered is already being used by another subscription.

This app does not have any other subscriptions with this Product ID. But I have another app with a yearly_3 Product ID.

According to the official documentation, the Product ID is A unique ID specific to your app. So I thought it was possible to have the same Product ID between apps, but not for the same app.

What's the rule here?

Thanks,

Axel

Are subscriptions Product ID unique per app or per developer account?
 
 
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