No Ads being loaded with Mediatailor Ad-Config

Question

Hi,

we want to create a FAST-Channel and insert ads, both via AWS MediaTailor.

We created an ad config with our [Test-Tag](https://pubads.g.doubleclick.net/gampad/ads?iu=/27665794/Netzkino/NetzkinoFAST/NetzkinoFASTDemo&description_url=http%3A%2F%2F&tfcd=0&npa=0&sz=640x480%7C1280x720%7C1920x1080&cmsid=%5Bplaceholder%5D&vid=%5Bplaceholder%5D&gdfp_req=1&output=vast&unviewed_position_start=1&env=vp&correlator=%5Bplaceholder%5D&vpmute=0&vpa=click&vpos=preroll) set as the "Ad Decision Server".

Our Test-Channel exists of a single program with configured ad-breaks at 20s/5m/10m/15m/20m and the ad slate being a 3-minute snippet of another movie.

![Enter image description here](/media/postImages/original/IMi2Njej6RRkazhDbC1W09YQ)

When testing the stream ([with the playback prefix of the ad config](https://2ad6745a002042ae8fb2c6adb5d899f1.mediatailor.eu-central-1.amazonaws.com/v1/master/1e5a812eabd557c8c00c0f01c6478c2f3aa7d4f5/AdCampaign1/main.m3u8)) there are no ads displayed.

Can anyone tell if our configuration is not properly set up or if the issues might be related to our provided Ad-Tag?

Answer

Riva, is this a VOD asset that is being played out? How are the ad breads at 20s/5m/10m/15m/20m configured? Are there SCTE-35 ad markers in the manifests or a predefined placement using a VMAP response from your ad server?
The following links may be helpful for your testing.
https://docs.aws.amazon.com/mediatailor/latest/ug/channel-assembly-working-vod-sources.html
https://aws.amazon.com/blogs/media/video-on-demand-ad-insertion-with-aws-elemental-mediatailor/

No Ads being loaded with Mediatailor Ad-Config

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