Several suppliers in one store: SKUs, prices and availability
Separate product pages or one shared page, how to match products across suppliers, whose price to show and what to do with different category trees.
Tag: pricing rules
How a product price is calculated, from supplier feed to storefront
A markup coefficient, cuts by category and supplier, discounts that keep the old price, fixed prices per SKU and rounding — what the price on the shelf is made of.