Amazon rewards listings that have a video, but the ad specs read like they were written for a production company. There is a format, an aspect ratio, a length window, and a rule against copyrighted music, and most sellers stall at the point where meeting those specs seems to require a studio. It does not. If you have clear product photos, you can build a compliant product video with a voiceover and export it in the shape the placement asks for. This is how to do that end to end.
Know the requirements before you generate anything
It is worth checking Amazon's current spec sheet in Seller Central before you start, because the details shift and each placement has its own rules. As a general shape at the time of writing, Sponsored Brands video runs in a 16:9 aspect ratio, sits in a length window that favors a short spot in the fifteen to thirty second range, delivers as an MP4 or MOV at 720p or higher, and must use audio you have the right to use rather than a copyrighted track. Videos also auto-play on mute in the feed, which is why captions and a strong opening frame matter more here than almost anywhere else.
The practical takeaway is that you are building to a target, so decide the aspect ratio and the length first and let every later step serve them. Do not generate a beautiful vertical spot and discover the placement wanted 16:9.
Get the product looking right first
1.
Clean up or restage the product photo
A product video is only as good as the still it starts from. If your existing photos are usable, great. If they are flat, inconsistent, or shot on a phone against a cluttered background, restage them with the product photo generator so every shot shares a look. Build a reference sheet from your best product image so the product stays recognizably the same product across every frame you generate. A product that must look like the product is exactly what reference sheets are for.
2.
Decide the one thing the ad proves
Amazon video that performs tends to show the product solving a specific problem, not listing features. Pick the single claim the video will demonstrate, because a fifteen to thirty second spot has room for one. Write it as a plain sentence before you touch the generator.
Turn the photos into a product video
With the reference and the claim in hand, generate the video. Because you are working from product stills, this is an image-to-video job: the product photo drives the motion, so the thing on screen stays the thing you sell. Morphic runs generations in parallel with no cap on volume, so you can ask for several takes of each shot and the length variations the placement might need, then pick the strongest on the Canvas rather than settling for the first render. Keep the shot list short and built around the claim: an opening that hooks in the first second, a middle that shows the product working, and a close that lands the product and the reason to buy.
Add a voiceover Amazon will accept
The audio rule is where a lot of sellers trip, because the obvious move, dropping in a music track, is the move most likely to get the ad rejected. A generated voiceover sidesteps the problem entirely. Morphic generates the voice in the same place you made the picture, and you can direct it to perform the line with emotion and pacing rather than read it flat, so the read sounds like a person recommending the product. If the spot needs a bed under the voice, generate music to the length of the cut rather than borrowing a track you do not have the rights to. For the moments that carry the product, generate sound effects too.
Because the feed auto-plays on mute, treat captions as required rather than optional. Transcribe the voiceover and burn styled captions onto the clip so the ad still works with the sound off, which is how most people will first see it.
Export in the right shape
Assemble the cut in Compose, the timeline editor, ordering the shots, layering the voice and any bed with per-clip volume, and adding captions. This is where the aspect ratio you chose at the start pays off: build the master to match the placement so there is no awkward crop at the end. If a campaign needs the same spot in more than one shape, you can extend a video past its original frame to reframe a master into another aspect ratio rather than rebuilding it. Export at 720p or higher as the spec asks, keep it inside the length window, and check it once against Amazon's current requirements before you upload.
When the cut clears the spec and shows the one thing you set out to prove, it is ready for the listing. To go straight to the generation step, the product video generator is built around turning product stills into motion.
FAQs
They vary by placement and change over time, so confirm the current numbers in Seller Central before you build. As a general shape, Sponsored Brands video uses a 16:9 aspect ratio, runs a short length in the fifteen to thirty second range, delivers as an MP4 or MOV at 720p or higher, and requires audio you have the right to use rather than a copyrighted track. Videos auto-play on mute, so captions and a strong first frame matter.
Yes. A product photo can drive an image-to-video generation, so the product on screen stays the product you sell. Build a reference sheet from your best still, generate the shots against it, and the look stays consistent across the cut. You do not need footage or a shoot to produce a compliant Sponsored Brands video.
Do not use a track you do not have the rights to. Generate the audio instead: a voiceover for the message, generated music for a bed at the length of the cut, and generated sound effects for specific moments. All of it is made inside Morphic, so there is no borrowed track to get the ad rejected.
Match the placement. Sponsored Brands video is generally 16:9, but check the current spec for the exact placement you are running before you build. Decide the ratio first and build the master to it, so you are not cropping a finished spot at the end. If you need the same ad in more than one shape, reframe the master rather than starting over.
Treat them as required. The feed auto-plays on mute, so a viewer's first impression happens with no sound. Transcribe the voiceover and burn styled captions onto the clip so the ad still communicates silently. It also helps the video demonstrate the product clearly in the first second, which is where these placements are won.
Short. Amazon allows a range, but a fifteen to thirty second spot built around one claim tends to hold attention and demonstrate the product without losing the viewer. Confirm the current length window for your placement, then cut to the shorter end of it rather than filling the maximum.