To cancel an order on your store:
Log into your Shift4Shop Online Store Manager.
Using the left navigation menu, go to Orders > Manage Orders.
Locate the order you'd like to cancel and click on its invoice number to open it.
Toward the top of the order, you'll see a drop-down menu labeled "Status."
4. Select Cancel from the drop-down menu.
5. Click Save at the top right to finish canceling the order.