Foxy seems to support these function as of quite recently (in beta)
Shopify offers extensive functionality, did try the buy-button integration with webflow and it worked (no need for webflow ecommerce plan, just regular cms). Does take some manual copy/paste to setup and adjust, or i guess zapier could fix that if you can make that work (and probably an extra subscription).
I’m also figuring out howto setup foxycart in webflow to test this
edit: it seems like webflow can’t handle this as of now