To set up your Google Analytics tracking log in to the WeSupply admin panel and go to Settings -> Integrations -> App Integrations and scroll down the Other Apps section. Click on Google Analytics.
Here, input your Google Analytics Tracking ID and Save your Changes. You can find your ID by following the steps outlined here.
After a few days of activity, head over to your Google Analytics account.
Under Acquisition go to Source/Medium filter by WeSupply and add a secondary dimension Campaign.
You will be able to track visits and revenue generated by WeSupply's conversions.