Start off by listing your property with a "for sale" status in Base: 

Open the relevant listing

Click on the "Diary" item on the right-hand side of the mandate screen

Select the correct date on the calendar and click on "Add"

Select "Auction" 

Set the auction date and time plus the venue - 15 Gallagher Avenue, Halfway House, Midrand

Save the changes

Base will push any for sale listings marked for auction through as auctions to external portals.