No impressions in Unity Ads (via AdMob mediation)

Unity Services
1

Good day!

05/03/2021 added Unity Ads to AdMob mediation (added an adapter and did everything according to the instructions Integrate Unity Ads with mediation  |  Google for Developers).
It took 2 days. There are requests to Unity, but no impressions:

7105159--847195--upload_2021-5-4_10-27-54.png
7105159--847195--upload_2021-5-4_10-27-54.png1504×293 20.5 KB

I also noticed in the Unity interface the buttons next to the placements are grayed out (I suspect they should be green if all is well):

7105159--847192--upload_2021-5-4_10-17-50.png

Can you please tell me what could be the problem?

2

The grey circle means there have been no new impressions in the past 7 days. The color just indicates how recent it last had an impression (green would be today)

You could disable AdMob from mediation and just have Unity if you want to verify.
Otherwise, I think if you tested it with a dev-build it would only show Unity Ads (AdMob rewarded ad only fills if downloaded from app store)

3

Thank you very much for your reply!

AdMob worked well for me previously.

To add Unity Ads I only added the “Google Mobile Ads mediation plugin for Unity Ads” and two lines of code:

using GoogleMobileAds.Api.Mediation.UnityAds;
// ...

UnityAds.SetGDPRConsentMetaData (true);

is that enough? Can I still enable the UnityAds service? Or add some code?

4

Yes that should be enough, actually the GDPR does not need to even be set. It should work without anything else once you import the plugin.

You can use the test suite to help debug: বিজ্ঞাপন পরিদর্শক  |  Unity  |  Google for Developers

Personally I would suggest to use a more powerful mediation suite. I like using ironSource for mediation. They have the option to set specific networks to show for your device_id so you can test each network individually to make sure they all work.

I find their mediation to be better to, as they support bidding and also you can define eCPM targets for 3rd party networks.

I found that AdMob favors showing it’s own ads even when the eCPM of 3rd party is higher. I guess all networks will bias towards their own ads. If you use a mediation network (but don’t display their ads) then i guess you can avoid this.

5

I am very grateful to you for the detailed answer!
Your advice was helpful. I will experiment