This is the shortest useful path from signing up to having a file on your computer, plus the small number of decisions that actually change the result.
Before you start: pick the right product
Not your newest, not the one you wish sold better. Pick the product that already sells, with photographs that are already decent. Two reasons: you will be able to tell whether the video changed anything, because there is existing traffic to measure against, and the input quality will not be what limits the output.
Step one: paste the link
Drop the product URL into the chat. Shopify, Amazon, AliExpress, eBay, Etsy, Temu and thousands of other stores are read directly, and the importer pulls the title, description and images.
If the site blocks automated reading, upload two or three photographs instead. Product alone, plain background, in focus. Avoid photographs containing people; the automated content checks on video models frequently decline them, and that is the single most common reason a first attempt stalls.
Step two: answer the questions
The agent asks who the ad is for, what you want the viewer to do, and what tone fits. Answer in a sentence each. You can hand these to the agent to decide, and it will make reasonable choices, but this is the cheapest quality improvement available to you.
Step three: choose the settings
Model, duration, aspect ratio, and whether to add a voice-over. For a first attempt: pick the ratio that matches where you will publish it, and keep the duration short. The cost of the generation is shown before you confirm.
Step four: generate, then look at it properly
Watch it once with sound and once muted. Most feeds are watched silent, so if the muted version does not make sense, that is the version to fix.
Step five: change one thing
Almost nobody's first generation is their final one, and that is normal rather than a failure. Tell the agent what is off, in plain words: "too slow", "start with the product in hand", "warmer light", "lead with the price". It replans and regenerates.
Two or three rounds is a typical arrival point.
What it costs to do all of this
The €5 entry offer produces one short video of about 12 seconds from your own product. That is deliberately the cheapest possible way to find out whether the output suits your brand, on something you care about rather than on a demo reel.
After that it is credit-based: credits do not expire, and every generation shows its exact cost before you confirm, because a longer video on a premium model costs several times what a short one on a standard model costs. If a render fails for a technical reason, the credits come back automatically.
What to do with the file
Put it in one place where you can measure it. The product page, or one paid social ad. Not five places at once, because then you will not know which one told you anything.
Related reading: Ways to create your video ad and Video ads for small businesses.