If you need to customize your availability (example: You won't be attending a market next weekend) you now have the ability to exclude your vendor profile for that particular date.
Here's how to customize your availability:
Log into your vendor profile at sourcewhatsgood.com (this feature is not available on the vendor app yet)
Go to settings > Markets
Within the markets page, you'll see the "Market Availability"
Click "+ Add Unavailable Dates" and choose the dates you wish to not recive orders for.