When you list a variation product to Etsy, Sellbrite combines your different variation fields into a single custom variant for each SKU. For example, if your product has both Size and Color variations, Sellbrite creates one custom variant for every size and color combination you offer.
Here's what that looks like on the live Etsy listing:
When a shopper selects the variation dropdown, they'll see an option for every combination:
Note: Etsy does not allow Sellbrite to send individual inventory quantities or prices for variations. For this reason, the lowest variation price will be listed as the default price, and the quantity menu will update depending on which variation is selected (based on the variation's available quantity).