In Google Play Console, you have to set product identifiers for managed products as well as subscriptions. Must those identifiers be unique across the entire app store resp. publisher account? Or only within the app bundle? Thank you for your response.
When you set a product ID into the Google Play console for a product/subscription, this id will be unique accross he entire app store resp per app / package name. publisher account. Moreover, according to the documentation
Product IDs need to be unique for your app, and they can’t be changed or reused after they’ve been created.
Hope it's help.