App Store Connect In-App Purchase Configuration

Developers often encounter challenges when adding in-app subscriptions to their apps due to fragmented documentation from Apple, which this guide aims to address by offering a comprehensive walkthrough of configuring in-app products in App Store Connect and Xcode. Essential steps include handling necessary paperwork like accepting the "Paid Applications Agreement" and updating tax and banking information, configuring the correct bundle identifier for the app, ensuring products are marked as "Ready to Submit" with all required localization, pricing, and screenshots, creating a Sandbox test account for pre-release testing, and using a physical device instead of a simulator to avoid connection errors. The process can be convoluted, requiring navigation between various Apple platforms, but adherence to these steps is crucial for successful in-app purchase implementation.