where i can retrieve application key from my mobile service instance ? Thank you. Julien

If you go to your Mobile Service in Azure and click on the configure tab <img src="https://i.stack.imgur.com/Jcjob.png" alt="config tab"> At the bottom of the screen this ribbon will appear <img src="https://i.stack.imgur.com/HPZA9.png" alt="buttons on ribbon"> If you click on 'manage keys' then it will show you your app keys<img src="https://i.stack.imgur.com/6su9i.png" alt="app keys">