We have a streaming service app with 1-month auto-renewable subscription.Now we have the plan that make 3 products in a same same subscription groupauto-renewable subscriptionSubscription-Group - product 1. 1$, free-trial 1month, every 1 month- product 2. 2$, free-trial 1month, every 1 month- product 3. 3$, free-trial 1month, every 1 monthWe want user could have only 1 month free-trial even if they Upgrade/Downgrade in that same subscription-groupex. User A product1 (free 2weeks) --(upgrade) --> product2 (free 2weeks) -> product2 (paid 1month) -> .....how can I make this?Is it enough they're in same group?Thanks!

Because of our ASk value is exposed , we need to reset FairPlay Certificates..Anyone know how to reset FairPlay Certificates? (revoke -> recreat, or change ASk value only )