Customer IDs can be found by looking up one of your customers (preferably a test customer with your email address and an inactive account) and then referencing the ID found at the end of the URL for that customer.
- Go to your customer admin in Shopify
- Click on your test customer to view that customer’s details
- Look at the URL in your browser. That URL should look something like ‘https://mystore.myshopify.com/admin/customers/123456789890‘
- The number at the end of the URL (i.e. 123456789890) is the customer ID you can copy and use when testing dynamic emails with our email editor.