“Cannot determine request type. Is your ad unit id correct?” An error occurs.

[HyeongMin Jo]

I'm making an app with flutter.
A few days ago, I registered an app called Todorize with Admob and after completing all settings, I was loading AnchorAd through a test account.
“Cannot determine request type. Is your ad unit id correct?”
The banner does not load due to an error message.

As in the attached file, adUnitId is properly registered as a test ID for iOS, but why does this error occur?
The same error occurs on Android as well.
When I searched, I heard that it was because the app store couldn't be connected, but I don't think that's the case.

A few months ago, I registered and tested an app called PUROVA, and the test went well. The app is not yet registered in the store, and currently the banner loads fine with a test account.

What's the problem?

[Mobile Ads SDK Forum Advisor]

Hi,

Thank you for contacting the Mobile Ads SDK support team.

Upon checking the ad unit id i see that you are passing wrong ad unit ID "ca-ap-pub-39402560********/29********". Kindly check the ad unit ID "ca-app-pub-39402560********/29********". We have tried running sample app and able to load ads successfully.

Please feel free to get back to us if you are still facing any issue in loading ads.

This message is in relation to case "ref:!00D1U01174p.!5004Q02vE02a:ref" (ADR-00258602)

Thanks,
 

Mobile Ads SDK Team