You can edit or cancel an order from the Orders page. Open the order you need, then choose Modify to change it or Cancel Order to cancel it.
Please note that editing is only supported by select vendors (mostly F&B), and cancellation requests can only be made within one hour of placing the order.
Cancel an Order
From the sidebar, select Orders.
Open the order you want to cancel.
Select Cancel Order.
Edit an Order
From the sidebar, select Orders.
Open the order you want to change.
Select Modify.
Update the quantities or items, then save your changes.