I'm struggling with the concept of adding new products to my catalog. If I have a product with 3 sizes (lets say a beauty cream with 8oz, 10oz and 12oz). They each have a unique UPC and item ID in my brick and mortar store. How do I add those to my PrestaShop catalog?
If I add as unique products then I can't drop-down to select different available sizes. However, if I just use attributes, then how does that work with UPC and ID?
It seems every tutorial and book in the world on PrestaShop is geared toward clothing and combinations. I could sure use some insight...