How to enable
Log in to your event on the Qflow check-in app.
Select the Settings tab.
Toggle Checkout to the on position.
Return to the Scan tab.
A small checkout icon appears in the top right of the Ready to scan screen, confirming the app is in check out mode.
Warning - Remember to toggle check out mode off when you are done. Leaving it on will check out guests instead of checking them in.

