A custom checkout banner on JVZoo is uploaded from Sellers → Custom checkout banners. A vendor banner covers every product that does not have its own product banner. A product banner overrides the vendor banner on that SKU only.
This is the official JVZoo tutorial. Watch it once, then use the click path below. Simon Harries, co-owner, is the author of this how-to.
Vendor banner or product banner
Open Sellers → Custom checkout banners. A vendor banner shows at the top of checkout for every product that does not have a product banner. A product banner is chosen per product and replaces the vendor banner on that checkout only.
Upload 720 × 125
Pick vendor or a specific product, choose the file, and upload. The walkthrough requires 720 × 125 pixels and the formats listed on that screen. After processing, the default JVZoo banner on checkout is replaced by the uploaded file. The recording’s banner is a demo, not a template to copy.
Buy buttons on the sales page are a separate control: JVZoo buy buttons on the sales page. If a control is missing or a save fails, write JVZoo support with a screenshot of the screen you are on.