Building custom integration for a client with their e-commerce store and Zoho. They essentially have a referral program, for the easiest explanation. When someone purchases, we need to keep track of who the referring person was in Zoho and credit them. They only sell 1 product so we don't need actual financial / sales data, just the number of units attributed to the person in Zoho. They want to be able to have reports generated in Zoho to tell them how many units each person is doing per month, who is their best performer, etc.

My task is simply getting the data from the e-commerce site into Zoho, I do not have to create any reports or anything within Zoho. I have no experience with the Zoho world so I am not quite sure where the best place to even put this data as there are so many different Zoho "things" to use. I thought about using Invoices, but again we don't necessarily need the transaction data just counts and when to produce the above stated reports.