Problem with in-app purchases in apple watch Swift - swift

Question

I have been trying in vain for several days to make a test purchase of a subscription from the watch, but nothing works out for me, all the methods that I found have been tried, and these are: apphud, rebooting devices, logging out with Apple ID, another Apple ID, test / not test apple id, sandbox is logged in, the appstore is also logged in, the card is linked, but, unfortunately, every time I try to buy, I get an error message: "Unable to Purchase App. Sign in with your Apple ID from the Apple Watch app on your iPhone".
Moreover, when I do all the same from the phone, everything works fine, and the purchase is made.
There is an option to try revenuecat, but honestly, I don't think it will be different from apphud. There is also an assumption that it is simply IMPOSSIBLE to make a test purchase from the watch.
Here is a piece of my code from in app manager (recipes are coming):
func startProducts() {
let bundle = appBundleID
let products = Set([
bundle + ".1m",
bundle + ".1y"
])
request = SKProductsRequest(productIdentifiers: Set(products))
request?.delegate = self
request?.start()
}
func productsRequest(_ request: SKProductsRequest, didReceive response: SKProductsResponse) {
guard firstRequestFinish else {
return
}
firstRequestFinish = false
defer {
finishProducts()
}
if response.invalidProductIdentifiers.count > 0 {
print("Invalid Products IDs: \(response.invalidProductIdentifiers)")
}
self.allProducts = response.products
let subscriptions = (response.products.compactMap { item in
return IAProduct(id: item.productIdentifier,
title: item.localizedTitle,
price: item.price,
localePrice: item.localizedPrice,
locale: item.priceLocale)
}.sorted { item1, item2 in
return item1.price.doubleValue < item2.price.doubleValue
})
self.availableSubscriptions = subscriptions
if subscriptions.count > 0 {
print("Available products IDs: \(subscriptions.map({ item in return item.id }))")
}
self.monthProduct = subscriptions.first { item in
return item.id.contains(".1m")
}
self.yearProduct = subscriptions.first { item in
return item.id.contains(".1y")
}
delegate?.inappWasLoaded()
}
I would be glad for any advice! Many thanks to everyone who will take part in the discussion of this issue.