Two things are sent:

The customer (created on first export, updated on later exports): first name, last name, email, phone (formatted), notify by email = on, notify by phone/SMS = the customer's own "receive SMS" preference, and their delivery addresses (the default address plus a "Second Address" if they have one), each with the weekdays it applies to, gate code and delivery notes.

The order: one package named "#<order number>", the expected delivery date, street address and second line, city, state, country (your business country setting), zip code, gate code, the hub of the order's kitchen location, the delivery notes and the customer's name as destination name. Root Planner returns a tracking code that Sprwt stores on the order for that date.