Hi Joycity, thank you for your question! The ageRatingCode API should be used to observe changes to your app's age rating over time by comparing to its last known value. If your app's age rating code has changed, consider informing parents or guardians by using the Significant Change API. A value of 0 is expected during development of your app when it is built and run from Xcode and Sandbox environments (including TestFlight).
Topic:
App & System Services
SubTopic:
StoreKit
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