The Orders API do not know about open tickets/orders created from the POS (feature request listed here: API access for tickets). Once it’s paid for, a backend order is automatically created, so you would be able to see it via the API.
The Orders API do not know about open tickets/orders created from the POS (feature request listed here: API access for tickets). Once it’s paid for, a backend order is automatically created, so you would be able to see it via the API.