If you delete an In App Purchase in your App Store Connect Account, you cannot use the Product ID linked to it anymore.
SINGLE ISSUE IN APP PURCHASES
If you have deleted your In App Purchase for an individual issue [aka. Non-consumable In App Purchase] then you will need to:
1. Create a New Issue Slot in your MagCast dashboard
2. Upload your Issue PDF file in the new issue slot
3. Use the
Product ID from the new issue slot to create your new Non-consumable In App Purchase, by
following these steps.
SUBSCRIPTIONS
If you accidentally deleted your Subscription (aka Auto Renewable In App Purchase) then you will need to:
1. Use one of the additional Product IDs provided in the Subscription section of MagCast
[under the iOS Setup menu].