If for example the item doesn't sell, you simply return the item into the consignor.
There are lots of horror stories out there about failed Internet businesses, runaway expenses, and confusing techno-speak which have many retailers thinking which can never succeed online. https://Medium.com/@hiresquarespaceseoexperts/why-your-squarespace-site-needs-professional-seo-right-now-93cc9ff71c02