Our consignment feature is like you're the store and people are bringing you things to sell. If you don't sell things for other people you can ignore that entire tab.
It helps you keep track of which people brought you which items, how much they sold for, what eBays fees were, shipping costs, and what you're going to charge the person for selling their item for them.
All of those things would take a good deal of time to do on your own so we help automate all that.