Pick 5–10 products from the ad-eligible collection — bestsellers by units, plus one or two well-reviewed items with weak traffic. For each one, paste the Shopify product URL into Klip Kanvas so the title, price, images and review language become a creative brief, then generate distinct hook variants rather than one video per SKU. Skip the long tail until those heroes have a read.
Bestsellers and hidden-gem products need different scripts even though the workflow is the same. A bestseller already has demand, so the video can lean on social proof and reorder language. A hidden gem with strong reviews and low traffic usually has a discovery problem, so the script should lead with the specific benefit reviewers keep repeating — that is the angle nobody has shown this audience yet. Do not write both as generic product demos and expect the catalog to sort it out; the feed can match SKUs, not angles.
Pull briefs from the live URL, not from a spreadsheet of last season's copy. Shopify titles, compare-at prices and on-page claims change during sales, and a video generated from stale notes will disagree with the product page the ad clicks through to. That mismatch is both a conversion leak and, on some platforms, a policy risk. If a product has no usable reviews yet, write three benefit lines by hand and keep claims inside what the listing already says, then replace those lines once reviews exist.