Hello, I am a new ios developer. I have recently developed my first application and am looking to use AdMob to advertise. I downloaded the SDK and followed the steps from
https://developers.google.com/mobile-ads-sdk/docs/admob/fundamentals but the test ad is not showing up. My app is running fine and I do not have any error messages. Any ideas. Also, do I need to have my app on the appstore before I can place the adds in the application or can I place the adds in before I submit my app for approval?