App Store Promotions - In-App Purchase Warning in App Store Connect

My app uses the new API for in-app purchase rather than the original API as listed here:

https://developer.apple.com/documentation/storekit/choosing_a_storekit_api_for_in-app_purchase

But in App Store connect I'm getting this error/warning:

These in-app purchases can’t be promoted on the App Store because your latest approved binary doesn’t include the SKPaymentTransactionObserver method.

SKPaymentTransactionObserver is a part of the old API and I believe I shouldn't need to implement it anymore. Anyone know what I should do here?

Got the same question Does anyone know a solution?

App Store Promotions - In-App Purchase Warning in App Store Connect
 
 
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