Each Product has four key elements to it:
A Location Code. The code of the city/town/locality where the service takes place. e.g. AKL = Auckland
A Service Code. A code that categorises the Product/Service by type. e.g., AC = Accommodation
A Supplier Code. The Creditor/Supplier Code of the creditor who will be paid for the service. e.g., SKGAKL = SkyCity Grand Hotel
An Option Code. A 6 character code that summarises the product description. e.g., ROHRMS = Run of House Rooms.