You could say that you mark an item as dispatched when you have packed it ready for collection by the carrier. If something has been dispatched it must be in transit so yes, it does mean the same thing. Dispatching 'soon' could mean anything though.2013-05-31
What is Amazon shipping?
Amazon Shipping delivers orders from your own website and other e-commerce channels. We pick up your parcels seven days a week and deliver them to your customers the next day.
What does in progress mean on Amazon?
Amazon places the order in Pending status. ... If there was a quantity of one at the time the order was placed, the listing will be removed from the Amazon offer page and appear in Manage Inventory with a quantity of zero while the order is being processed.