The chart shows queries and muations (the colored ovals), the information you get from there and where you need to reuse the information.
When you register your software with us, you get a machine-to-machine access to our BusinessManager. Request the DistributionGates connected to your software using connectedDistributionGates. This means, the distributors using your software as a DistributionChannel. Amongth other things, the query returns some default values for the DistributionGates.
You work with the DistributionGate to find products, get prices and information about the logged-in user.
Adding products to the shopping cart and placing the order using the BookingGate.