Adding IAP Create a new app ID and create a new app using that ID on apple connect Add IAP and make sure that screenshots are provided to get the IAP in Ready to Submit state. To test IAP on test account, you need to wait between 12-24 hours to make the product available to test. App installation failed, Could not write to the device Restart your iphone and xcode. Sometimes restart Mac or build 3-4 times If you have another device such as iPad, build and run for that device and then run it back with previous device again Building to device Export XCode project from Unity as usual. Create new development certificate for building into the device Mark automatic code signing if you're in development and testing the app Select your team in the provision profile Note : If you're using onesignal, make sure you also select your team in targets in onesignal project as well. Publishing to appstore Create distribution profile for app and download it U...