@Dylan AFAIK, Shopify is still working on the rollout of ‘new Markets’ – last I checked, it’s still in test drive for Plus stores only. That said, if you’re using a shop with new markets (which should include new Plus stores created through the dev dashboard), IMO the current MX for creation of B2B markets is a bit counterintuitive because the UI defaults/assumes you want to create a region-based market.
To create a B2B-specific market, you’ll need to adjust the ‘includes’ setting and select company locations. See this screencast for an example: Zight Recording 2026-01-19 ...