The three email flows every online shop should have.

Most online shops treat email as a newsletter: something you send when there is a sale. That leaves a lot of money on the table. The emails that make the most revenue are not campaigns at all. They are ecommerce email flows: automated sequences triggered by what a customer does.

You do not need twenty of them. Three flows cover the moments that matter most: when someone joins your list, when they leave without buying, and right after they buy. Set these up properly and they work every day without you touching them.

1. Why flows beat one-off campaigns

A campaign goes to everyone at the same time, whether they care or not. A flow goes to one person at exactly the right moment, because they just did something. That timing is why flows usually earn far more per email than newsletters.

Flows also make your paid ads more profitable. Every visitor you pay for on Google or Meta who leaves an email address gets a second, third and fourth chance to buy, without another click cost. If you are paying for traffic, flows are the cheapest way to raise your return.

2. Flow one: the welcome series

The welcome series starts when someone subscribes, usually through a pop-up, a discount offer or a free guide. This is when interest is highest, so do not waste it on a single “thanks for subscribing”.

If a subscriber buys at any point, they should leave the welcome series and move into the post-purchase flow. Nobody wants a discount reminder for something they already bought.

3. Flow two: abandoned cart

According to research collected by the Baymard Institute, around 70% of online shopping carts are abandoned. You can read their cart abandonment rate statistics for the full breakdown. Many of those people were just comparing, or got distracted. A short, well-timed reminder brings a part of them back.

1. Email 1, after 1–4 hours: a simple reminder with a picture of the product and a button back to the cart. No discount yet.
2. Email 2, after 24 hours: handle doubts. Reviews, delivery times, your return policy.
3. Email 3, after 48–72 hours: a last nudge. If your margins allow it, this is where a small incentive like free shipping can make sense.

A related flow worth adding later is browse abandonment: someone viewed a product but never added it to the cart. It needs good tracking on your site, so make sure your tracking is working correctly before relying on it.

4. Flow three: post-purchase

The post-purchase flow is the one most shops skip, and it is where repeat customers are made. Getting a second order from an existing customer is much cheaper than finding a new one through ads.

• Right after the order: a warm thank you, what happens next and when the parcel arrives. This reduces “where is my order” questions.
• A few days after delivery: tips on using the product, or care instructions. Show that you care about the result, not just the sale.
• One to two weeks later: ask for a review. Reviews feed your ads, your product pages and your next customers.
• Later, based on your buying cycle: recommend a matching product or a refill. A coffee shop might send this after three weeks. A furniture shop might wait three months.

Your next customer is often your last customer. The post-purchase flow is how you ask them back.

5. Getting the basics right

A few rules make all three flows work better.

• Write like a person. Plain, friendly emails often beat heavily designed templates, especially in the abandoned cart flow.
• One email, one goal. One main button per email, so the reader always knows what to do next.
• Use exit conditions. Someone who buys should stop getting cart reminders straight away.
• Respect consent. In the EU, you need clear permission before sending marketing emails, and an easy way to unsubscribe in every one.
• Measure revenue per recipient, not just open rates. Opens are unreliable today. Revenue is not.

These three flows are also your best preparation for big sales. If you are planning your Black Friday campaigns, every new subscriber you collect beforehand will land in a welcome series that is ready to sell.

Want them built properly in your shop platform? This is part of my email marketing service, from strategy to the finished automations.

Frequently asked questions

What are email flows in ecommerce?

Email flows are automated email sequences triggered by a customer action, such as subscribing, abandoning a cart or placing an order. They are set up once and then run automatically for every customer.

How many emails should an abandoned cart flow have?

Three emails work well for most shops: a reminder after one to four hours, a trust-building email after 24 hours and a last reminder after two to three days.

Which email flow should I set up first?

Start with the abandoned cart flow if you already have traffic, because it recovers sales that are already close to happening. Then add the welcome series and the post-purchase flow.