I’ve successfully managed to make my first sandbox subscription purchase with an iPhone device, in a React Native app.
Now I want to cancel this sandbox subscription to try my workflow again. According to App Store Connect:

As you can see in the screenshot above, Apple writes: “To repeatedly test common in-app purchase scenarios for a sandbox tester, click Edit to clear their purchase history.”
I have cleared their purchase history but the subscription remains in RevenueCat:

Aren’t App Store and RevenueCat synced?
How can I easily cancel a users subscription everywhere (in sandbox environment)?
I’m basically trying to figure out the smoothest testing workflow for purchasing subscriptions, cancelling them and retrying the whole process, many times.