I have a new app (first version, not yet approved) with one auto-renewable subscription. Earlier in development, the subscription loaded and I could complete a sandbox purchase (the StoreKit sheet showed "Sandbox", the price, and my sandbox account). To resolve an App Store Connect submission deadlock, I deleted that subscription and created a new one with a new Product ID. Since then, the new subscription does NOT appear in the sandbox: StoreKit returns no products, so getOfferings (via RevenueCat) returns 0 packages — both during App Review and on my own development build signed into a sandbox account. Configuration (all verified): Subscription is "Ready to Submit" / "Waiting for Review" Available in all territories Paid Apps Agreement active; banking and tax complete Bundle ID and shared secret unchanged from when it worked App Review keeps rejecting under Guideline 2.1(b) ("プレミアムをはじめる" / purchase button unresponsive) because the product never loads. Questions: For a newly created IAP on a not-yet-approved app, how long does it take to become available in the sandbox? Is there a known propagation delay (24h+)? Does re-creating the product with a new Product ID reset or delay sandbox availability? Is anything required for a new product to be served in the sandbox before the app's first version is approved? Any guidance appreciated. Thanks!