Our video ad screenshots have a bit different workflow than display. There's quite a few more variables our system needs in order to generate these screenshots.
To get started create a campaign or choose one of your saved campaigns. The video screenshot option lives within a campaign (you can't request a video screenshot during the campaign creation workflow):
From there, submit your request using a VAST tag, video URL, or video file.
Note: If you're uploading a video file, the max size is 10MB. Should your video be larger than that, you can always upload it to a file sharing app (ie. Google Drive, Dropbox, WeTransfer) and make it a sharable link, which allows you to upload the ad as a Video link instead.
Once your video screenshot request is submitted and complete, you will receive an email notification with a link to the completed screenshot in Ad Reform.