Email Flow
An email flow is an automated sequence of emails triggered by a shopper's behaviour, sent without you pressing send each time.
What it means
An email flow is a set of emails that your email platform sends automatically when a shopper does something specific: joins your list, adds to cart and leaves, places a first order, or goes quiet for ninety days. You build the sequence once, set the trigger and the delays, and it runs for every shopper who qualifies.
A flow is not an Email Campaign. A campaign is one message you schedule and blast to a segment on a chosen date, and it is the same message to everyone on it. A flow has no send date at all; it starts from the shopper's clock, so two people can receive email one of the same flow weeks apart.
How it is measured
Flows are usually judged on Revenue per Recipient: flow revenue divided by the number of people who received it. The honest denominator is recipients. The flattering one is emails delivered, which counts a three-email flow three times and roughly thirds your per-email figure, or conversions divided by openers, which quietly drops everyone who never opened. Attribution matters too: a 5-day click window credits the flow with far less than a 30-day view-through window. Pick one denominator and one window, then compare flows only against themselves over time.
A Shopify example
For A Shopify store selling reusable coffee filters
Worked example
Their abandoned cart flow has three emails. In March, 2,400 shoppers entered it and 61 placed an order, a 2.5% conversion. At an AOV of £34, that is £2,074 in flow revenue. Divided by 2,400 recipients, Revenue per Recipient is £0.86. Measured per email delivered instead, across 6,900 sends, the same revenue reads as £0.30.
See this on your own store
Paste your store URL. The audit takes about a minute, costs nothing, and ends with a welcome flow you can read before anything is sent.