I would like to provide additional information that might help with the investigation:
I believe this might indicate that the system is processing requests and serving ads initially but then invalidates or nullifies the data afterward. I wanted to share this detail in case it assists in diagnosing the root cause.
Thanks, please help me 😭
Hi,
Thank you for contacting the Mobile Ads SDK Support team.
Please use the following help center article to understand Impressions, eCPM, Advanced techniques to optimize in-app revenue with Google AdMob guide, optimization tips and Match rate that can help you regarding revenue optimization.
Kindly note that the SDK just requests an ad to the ad-server (AdMob, Ad Manager, AdX or through a Third-party ad network) and does not have any control over the eCPM, match rate/fill rate/show rate/display rate or impressions of your app. I'm afraid eCPM, match rate, and impression issues are out of the scope of our team. I would recommend that you reach out to the Product support team as they are better equipped to address your concern.
Kindly note that our support channel can only best assist you with regards to Google Mobile Ads SDK implementation and technical issues.
![]() |
Mobile Ads SDK Team |
Hi,
Thank you for contacting the Mobile Ads SDK support team.
I have executed a Google Interstitial sample application with your app ID and ad unit ID and the issue error code 3: no fill is replicating. No fill error means that the ad request was successful, but no ad was returned due to a lack of ad inventory. It is very important to follow AdMob Policies, as well as Implementation Guidelines to avoid any issues. Kindly check your implementation so that Ads load and show as expected.
Please note this behavior isn't controlled by the Mobile Ads SDK. The next step for you would be to reach out to the Product Support Team for further assistance regarding the ad serving concern.
Also note that I have deleted the previous message because it contains PII information app ID(ca-app-pub-56xxxxxx~12xxxxxxx), ad unit ID(ca-app-pub-56xxxxxxx/13xxxxxx).
Hi,
Since you are facing issues with displaying ads with AdMob, follow the steps in Can't See Ads Troubleshooter and select the answers that best describe your situation.
As stated earlier, I would recommend that you reach out to the Product Support Team for further assistance regarding the ad serving concern. Please note that the SDK just requests an ad to the ad server (AdMob, Ad Manager, AdX, or through a Third-party ad network) and does not have any control over the match rate/fill rate. Note that we can only assist with technical queries/concerns related to the Mobile Ads SDK.