Apple has informed developers that users will soon be able to resolve billing issues with leaving their app.
Soon it will be easier than ever for your customers to resolve payment issues, so they can stay subscribed to your content, services, and premium features. Starting this summer, if an auto-renewable subscription doesn't renew due to a billing issue, a system-provided sheet appears in your app with a prompt that lets customers update their payment method for their Apple ID. No action is required to adopt this feature. Starting today, you can get familiar with the sheet in Sandbox. You can also test delaying or suppressing it using messages and display in StoreKit. This feature will require a minimum of iOS 16.4 or iPadOS 16.4.
Apple notes that this adds to existing features to help developers retain subscribers. For example, if a subscription is in the billing retry state, Apple uses machine learning to optimize payment retries for the best possible recovery rate. Additionally, if developers enable Billing Grace Period, customers can continue accessing their subscriptions while Apple attempts to collect payment.
More details about the new system-provided sheet at the link below...