Hi there,
I'm having trouble using this API: https://developer.apple.com/documentation/appstoreserverapi/extend_subscription_renewal_dates_for_all_active_subscribers
It is returning a 400 response for all product IDs for my app's subscriptions:
(400, 4000023, 'Invalid request. The product id parameter is invalid.')
I have verified these productIds in the App Store Server UI, and using the App Store Connect API to retrieve the product IDs for all subscriptions in the subscription group.
Any tips would be greatly appreciated!