App Review repeatedly failing due to In-App Purchase paywall error (Guideline 2.1) — despite sandbox testing

I’ve previously shipped apps to the App Store, but I’m encountering an In-App Purchase issue on this submission.

During App Review, tapping Continue on the paywall shows:

“Plans not available, try again later.”

This leads to a rejection under Guideline 2.1 – App Completeness.

I’ve confirmed:

Paid Apps Agreement is active

Subscription plans are Ready to Submit

StoreKit returns products during sandbox testing

Purchases work correctly with fresh sandbox users

Is there any way to reproduce or validate the App Review sandbox environment without repeatedly resubmitting? Are there known reasons this error appears in review but not during local sandbox testing?

Thanks.

Thank you for your post. We're investigating and will contact you in App Store Connect to provide further assistance. If you continue to experience issues during review, please contact us.

App Review repeatedly failing due to In-App Purchase paywall error (Guideline 2.1) — despite sandbox testing
 
 
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