This will allow you to import products, create discount code, manage existing discount codes, etc...
Step 1. Go into the "Brands" tab.
Step 2. Select "Edit" or "New Brand".
Step 3. Then, select "Step 3: E-commerce Account," which is located in the side menu.
Step 4. Click on "Connect" to start connecting your Shopify.
Step 5. Then, select a brand, enter you Shopify store URL, and click the blue "Connect" button.
Step 5. Next you will be taken to a new page to login in to your Shopify account.
Check out this video for more help!
To learn more about the Shopify integration, click here.