You can connect your Shopify account two different ways:

Option 1 - Adding from the Shopify app store

Option 2 - Connecting Shopify from your account

Both will work just as well. Option 2 will require you to sign up for first.

Option 1: Go to the Shopify App Store and find the app. Click the "Get" button on the right side of the page. You'll then need to login with your Shopify credentials and authorize

Option 2: Sign up for a account at Go to the integrations settings page of your merchant account. In the Shopify section, click the connect my Shopify. You'll be taken to a Shopify authorization page to authorize