The dimension Customer Order Count is the number of orders placed by the customer (a 1 here indicates that it's the customers first order). Using this dimension we can create the metrics First Time Customer and Returning Customer. Below is two screenshots that shows you how to to it.

Please note that you need to select "Include customer data" when connecting a Shopify source to Funnel for the dimension Customer Order Count to be available.

First time Customer

Returning Customer

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