A cart bump that sells the extra item

A cart bump offers one more product while the shopper is already buying. It can show in the cart or at checkout.

You set the trigger: all products, specific products, or categories. You set quantity. You can offer a percent or amount discount. You can turn on a swap-upgrade so the extra item replaces the one in the cart. You write the title, description, and button text. You set dates, a loyalty-club scope if you use one, and where the offer displays.

iStores help lists this under Marketing and sales → Cart bump. On Sellavi the same feature may sit behind an add-on or a plan upgrade. If you do not see Cart bump yet, that is why — not because the product is missing.

This page stays high-level on the screen itself. We are not inventing an admin path we have not re-opened in Sellavi.