admob sdk doen's show real ads

Following https://docs.expo.io/versions/latest/sdk/admob/ instructions, I added admob support:

              <AdMobBanner
                bannerSize="banner"
                adUnitID="ca-app-pub-my/my"
                onDidFailToReceiveAdWithError={()=>{}}
              />

and it works with testDeviceID=“EMULATOR”
but when I built release version on real device, ads did not appear.

I have some ideas:

  • Should I add my admob application identificator? Because it’s missed in manual.
  • Should I provide device id for production?
  • In my admob admin console in google site I have “Companies for this banners: 0”. Does it matter?

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