Subscription tags are a great way to identify any customers or orders with a subscription in Shopify then use this for segmentation, reporting, and more!
From admin/orders you will see the tag ' Subscription First Order' for the customer's first subscription order and 'Subscription Recurring Order' for any following orders.
' Active product subscription'
' Canceled product subscription'
' Canceled product subscription - Failed payment'
' Subscription - Failed payment'