Here's a description of all values the input parameter status can take on:

unplaced - an order will take on this status if the input parameter place_order is set to false when creating the order using the Create Order API, and the order is not yet finalized using the Finalize Order API.
awaiting_confirmation - an order will take on this status if the order was created using the Create Order API and the input parameter place_order is set to true, or if the order was finalized using the Finalize Order API.
in_progress - an order will take on this status after taking on the awaiting_confirmation status, once the store has confirmed the order.
completed - an order will take on this status after taking on the in_progress status, once the pickup order has been picked up or the delivery order has been delivered.
canceled - an order can take on this status after taking on one of the following statuses: awaiting_confirmation, in_progress, completed. Orders can be canceled due to various reasons, such as the store rejecting the order or the delivery service canceling the order due to unavailable delivery drivers.