Steps to set up your existing domain to connect to Shopify

Step 1: Log in to the account that you have with your domain provider.
Step 2: Find your DNS settings. Look for your account admin panel, or your domain management area, or DNS configuration, or similar.
Step 3: Edit your A record to point to Shopify’s IP address.
Step 4: Save the A Record.
Step 5: Find the CNAME record in your DNS settings.
Step 6: Change your www CNAME record to point to shops.myshopify.com
Step 7: Save the CNAME Record.