There is now API for showing an Apple-managed UI on your UIWindowScene for managing subscriptions (https://developer.apple.com/documentation/storekit/appstore/3803198-showmanagesubscriptions) but I don't think you can display your own UI for cancelling or programmatically cancel without interaction.

Note: I have also attempted this with Xcode 13.1 which yielded no difference.

@Jason This Technote is awesome. Is there any explanation of this recommendation? Unless you have a specific reason to use URLSession, use Network framework for new WebSocket code. That seems like the opposite of what I would expect, so I'm curious to understand why we should prefer Network framework over URLSession for websockets.

@eskimo Thanks for the detailed answer! I feel like I understand the tradeoffs now. I appreciate that Apple has internal style to stick to & whatnot, but in my personal opinion this bullet point would much enhance the technote: URLSession is very much focused on HTTP, and WebSocket isn’t an HTTP-like protocol. While it uses HTTP under the covers, the actual WebSocket protocol is a reliably bidirectional connection with message framing. Those semantics are a much better match for NWConnection than URLSession. That really cleared up for me why it was a generally good starting point, rather than "start with URLSession & use NWConnection when you need something special". One last bit if you don’t mind — is there official documentation/tutorial/walkthroughs/etc. that explain making a WebSocket connection with NWConnection? It looks a bit more complicated to setup than URLSession & is definitely less familiar to me.

Thanks for your reply! I’m interpreting what you’ve said to mean “the user’s App Store account has been deleted.” None in particular seemed suspicious, I was just a little surprised at the incidence rate for this error code. Among our receipts is slightly more than 1/1000, which seems a little high to me. But frankly the major confusion was I had 21010 down as “unauthorized” rather than “account not found” and I thought the difference in error code was strange. Thanks @App Store Commerce Engineer

Yeah, this is very annoying (filed FB12010677 about it). We use URL(string: "x-apple.systempreferences:com.apple.preference.notifications")! which gets you pretty close — the user still has to scroll down and select your app though.