Add and approve the sellers on your marketplace, set their commission and plan, and manage the people who sign in to each seller panel.
Vendors only appear when your store is a marketplace: your plan must include the Marketplace app (see the features list). Then open Vendo...
1. Click New Vendor.
Open a vendor from the list to see their profile.
A vendor admin is a person who signs in to a seller's panel. Each vendor gets one with their owner account; they can have more.
Your store isn't a marketplace. The Marketplace app must be on your plan; see the features list.