I have an App Store subscription with an introductory price with a duration of 3 days. I can see this by checking my SKProduct's introductoryPrice property, which has a subscription period of 3 days:
let product: SKProduct
...
print(product.introductoryPrice.subscriptionPeriod)
I can also check this in App Store Connect:
It says 'free for the first 3 days', but there is no way to edit that. I can only click on 'no end date' and set an end date, which is not what I want. Is that editable and if yes how?

