I received an email from the app store that contained this message
We’re reaching out to let you know that the subscriptionPricePoints endpoint now requires a territory relationship filter. If you use the App Store Connect API to configure your subscriptions, please note that you'll be required to define this filter in an upcoming release.
but I can't understant it, please could anyon explain what they want or what should I do?
my app was built with Flutter and had in-app purchase
If you use the App Store Connect API to configure your subscriptions, you’ll need to specify which countries or regions (territories) your subscription applies to. This will be mandatory in an upcoming update. If you’re using the App Store Connect API to manage your subscriptions, you’ll have to include this territory information in your requests.
To understand the changes better, you can check the release notes for App Store Connect API 3.6. One key update is that when you’re retrieving a list of price points (subscription prices), you now have to specify which region you’re referring to.
If you want to see a list of available regions (territories), you can find that here: List All Territories for an End User License Agreement.
Basically, you will need to be more specific about where your subscriptions are available, and this will be a requirement moving forward. Review the App Store Connect API 3.6 release notes > The List All Price Points for a Subscription endpoint now requires a territory filter > List All Price Points for a Subscription..