My bad, it was a typo. 150,000 per quarter should be more than enough for my app at the current stage. I also thought about auto-populating the code for the user, but I thought about doing that within the app. Following the provided link, it reads "Redeemable through a direct URL or within your app on iOS 14.1 or iPadOS 14 or later." so I'd be interested in "within the app". That's just better user experience for the user and better conversion for me. I don't understand would it be necessary to take the user out of my app? Can't I just add the offer code to the SKPayment? Assuming I will not hit the limit of 150,000 per quarter, I would implement it as follows: add logic for showing reduced prices on the subscription screen and auto-populate the offer code for a limited period of time, e.g. from the beginning of June till the end of September. After that, I'd go back to showing the regular pricing and the offer code would not be attached anymore or would simply expire. The 1-week free trial IntroOffer would work the same as before. Is that a feasible solution given what StoreKit can offer? I've updated my app's deployment target to iOS 15 so I can use StoreKit2 if needed.

Thank you for the quick answer! That seems to be a good approach for my app as it is not that popular so I doubt it will hit the limit of 15000 codes per quarter. The configurability of Offer codes looks good, but I don't really need redemptions via URL—everything is done in-app. I wish there was an easier solution so that the user wouldn't have to enter any code and that I could just configure it all together as an Introductory offer, but I guess I will have to go with that approach. You mentioned "Pay as you go Offer Code" that allows redemption of Introductory offers. Do "Pay up front Offer Code" also allow redemption of Introductory offers? My current subscriptions are configured as 1-week trial + Pay up front for the whole period. And just in case, let's say I estimate that I will sell more than 15000 subscriptions in a given quarter and I wanted to implement that logic, what approach would be appropriate in that case?