Well this explains it, I just ran into this trying to build a Gravity form that will just “start” an open ticket. We have a food truck and we want factory workers to pre-order the night before and start their ticket so the next morning we can add the items and send it to the kitchen like a phone order. The farthest we got so far was to just get the “customer” created which is a start, but adding the open ticket with some basic information would save another bit of time. Hard to believe there’s no API for that available after 3 years.