Mobile App Migration: Restoring Purchases
You may need to restore purchases, because it is not possible to restore purchases made from the older apps.
In the old app, you will see the message "This App will be no longer updated" with a link to "Check Subscriptions". Click on the link to display your subscriptions and if one or more regions are not in the list, click on the "Restore Purchases" button.
Once your subscription purchases have been restored, proceed through the migration process.