How will I know when a delivery has been completed? Natalie W. April 02, 2020 16:00 Updated You can track all of your ongoing deliveries in your app, which will show you each order’s location and ETA. Related articles What if I have an issue with a delivery? How do I create a delivery on Square? What is Postmates Delivery on Square? I'm the end customer/recipient. Can you help me with my order? Who can use Postmates Delivery on Square?