Count of unique customers with more than 1 order
Formula
Repeat Customer = DISTINCT(Customer ID) WHERE Payment Status IS NOT "Voided" AND Customer Order Count >1
Explanation
Repeat Customers are Customers with more than 1 Gross Order.
Notes
We use same definition as Shopify to define a customer and base it on the email address. Every new email address an order is placed from will create a new customer.