I need to integrate in app purchase in already available app. I added product in iTunes but that product status is “Waiting for review”

问题

I need to integrate in app purchase in already available app. I added product in iTunes but that product status is "Waiting for review". How can I test with these products in device using developer certificates?

来源：https://stackoverflow.com/questions/37268269/i-need-to-integrate-in-app-purchase-in-already-available-app-i-added-product-in