No Adsense Backfill Ads with google admanager Vast Tags

[Sven Henning (www.spielenxxl.de)]

Dear google Ima Grou members,

i have activate on Vast the adsense Fallback and Set some Sizes for Compinion Ads

but no Ads will be shown on Website or Vast Tag Tester.

https://pubads.g.doubleclick.net/gampad/ads?iu=/22447677891/VastN&description_url=http%3A%2F%2Fwww.cinemaxxl.de&tfcd=0&npa=0&sz=1x1%7C400x300%7C640x480&ciu_szs=fluid%2C580x400%2C336x280%2C300x250&min_ad_duration=30000&max_ad_duration=60000&gdfp_req=1&unviewed_position_start=1&output=vast&env=vp&impl=s&correlator=&gdpr=1&gdpr_consent=${GDPR_CONSENT_115}

if (isset($_GET["GDPR_CONSENT"])) {
foreach ($ads as $key => $value) {
$ads[$key] = str_replace('${GDPR_CONSENT_115}', $_GET["GDPR_CONSENT"], $value);
}
}

Consent String will works correct ...

Have any one Idea why no google Adsense Fallback Ads are delivered ?

Best regards Sven
Thats my Config:

[IMA SDK]

Hi,

Thank you for contacting the IMA SDK support team

I've checked your shared VAST and it is returning error code 303 empty response in IMA VSI. I would you suggest to contact your AdManager representative. We can provide support related to IMA SDK integration related concern.


Thanks,
 

IMA SDK Team

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[2025-03-03 22:16:02Z GMT] This message is in relation to case "ref:!00D1U01174p.!5004Q02vH5iR:ref" (ADR-00291158)

[IMA SDK]

Hi Sven,

Thank you for getting back to us.

I ran the provided VAST tag URL in the VSI tool and its still the same issue error code 303 empty response is being replicated.

To help resolve the issue you've been experiencing with your account, I'm adding another support team – AdManager product support team – with expertise in API troubleshooting. You'll receive an email shortly with all the teams involved.

Thanks,
 

IMA SDK Team

Feedback
How was our support today?

               

[2025-04-30 08:01:17Z GMT] This message is in relation to case "ref:!00D1U01174p.!5004Q02vH5iR:ref" (ADR-00291158)