Wholesale Club requires code to be injected into the theme file of your choice. When you run Wholesale Club's Theme Setup tool, the app will create an exact copy of your requested theme and install the app's code on that copy. This leaves your original theme untouched, giving you a safe backup.
Once you’ve run the Theme Setup tool, use our checklist here to make sure everything is running smoothly. The checklist covers setting up some discounts, setting up customers and testing some common issues that can come up in the storefront!