Abandoned Cart Emails: Setup and Best Practices

Most ecommerce stores lose the majority of their carts before checkout completes. That sounds alarming until you realise it's also an opportunity: a well-built abandoned cart flow is one of the highest-converting, fastest-to-implement automations in ecommerce email, because it targets people who got within a few clicks of buying and simply didn't finish.

This guide covers how to set one up properly — the structure, the timing, what to actually say, and where discounting helps versus where it just erodes margin.

An abandoned cart email is an automated message sent to someone who added a product to their cart but left the site without completing checkout. It's triggered by a specific event — usually "Started Checkout" or "Added to Cart" without a follow-up order — and reminds the shopper what they left behind, with a direct link back to finish.

It's distinct from a browse abandonment email, which targets people who viewed products but never actually added anything to a cart. Cart abandonment is further down the funnel and typically converts at a noticeably higher rate, since intent is stronger.

Understanding the reasons matters because it shapes what your emails should actually say. Common causes include:

• Unexpected costs at checkout — shipping fees or taxes added late.
• Being asked to create an account before they can pay.
• Comparison shopping — they added to cart to save the item, with no intent to buy immediately.
• A slow or confusing checkout process, especially on mobile.
• Simple distraction — they got interrupted and never came back.

A good recovery flow addresses several of these at once: it brings the shopper back, reassures them about cost and process, and gives them a frictionless way to finish what they started.

A typical, well-performing abandoned cart flow has two to three emails:

• Email 1 — The reminder. Simple and direct: "you left something behind", with a clear image of the product and a one-click link back to checkout.
• Email 2 — Reassurance and proof. Address common hesitations — reviews, your returns policy, delivery times — and reinforce why the product is worth completing the purchase for.
• Email 3 — The final nudge. A last reminder, often paired with a modest incentive or a note that stock is limited, if genuinely true.

Anyone who completes their order at any point should exit the flow immediately and move into your post-purchase sequence instead.

Timing has a direct, measurable effect on recovery rate. A common, effective cadence:

• Email 1: 1 hour after abandonment — while the product is still front of mind.
• Email 2: 24 hours after abandonment.
• Email 3: 48–72 hours after abandonment.

Sending the first email too quickly — within minutes — can feel intrusive. Waiting more than a few hours, on the other hand, means you're competing with a fading memory of the product and a cooling sense of urgency.

The essentials

Every cart recovery email needs the same core elements: an image of the exact product left behind, the price, and a single, obvious button back to checkout — ideally pre-filled with their cart intact so there's zero friction to finishing.

Subject lines that work

Direct framing tends to outperform cute or vague subject lines for this flow — something like "you left this behind" or naming the product directly. People recognise the context instantly, which drives the open.

Building trust in the second email

If someone didn't convert off the first reminder, repeating the same message rarely changes the outcome. The second email should add something new — a review, a guarantee, an answer to a likely objection — rather than just resending the same reminder with louder urgency.

The goal isn't to chase the sale harder. It's to remove whatever actually stopped it happening the first time.

A discount can lift recovery rates, but it's not always the right lever. If someone abandoned because of price sensitivity, a discount directly solves their objection. If they abandoned because of distraction or a slow checkout, a discount is unnecessary margin lost — the reminder alone would have worked.

A reasonable approach: skip the discount in email one, and reserve it for email two or three if you choose to use one at all. That way you're only discounting the shoppers who genuinely needed the extra push, not every cart that would have converted anyway.

For shoppers who've opted in to SMS, a short text — sent slightly ahead of or alongside the first email — can capture attention faster, since open rates for SMS are typically much higher than email. Keep it brief: a one-line reminder and a link is enough. Make sure whatever platform you're using has explicit, compliant opt-in for SMS before adding it to the flow.

SMS works best as a complement to the email sequence rather than a replacement for it — not every subscriber opts in, and the two channels tend to reach people at slightly different moments. A shopper who ignores an email might still glance at a text, and vice versa, so running both gives the flow more total surface area without meaningfully increasing the effort to maintain it.

Two numbers matter more than any others for this flow: recovery rate (the share of abandoned carts that go on to convert within the flow's window) and revenue per recipient. Open and click rates are useful diagnostics, but they don't tell you whether the flow is actually making money — a high open rate with a low recovery rate usually points to a problem in the offer or the checkout experience, not the subject line.

It's worth reviewing performance email-by-email rather than at the flow level alone. If email one is converting well but email two and three are barely opened, the gap is probably in subject lines or send timing rather than content. If all three are opened but recovery stays flat, the issue is more likely friction in checkout itself — worth testing on a phone, end to end, every few months as your site changes.

Most platforms, Klaviyo included, will show attributed revenue per flow and per individual email. Check this monthly rather than weekly — cart recovery data is noisy at small sample sizes, and over-reacting to a single bad week tends to do more harm than good.

Sending only one email

A single reminder recovers some sales, but a lot of the additional recovery happens in emails two and three, where objections get addressed rather than just repeated reminders.

Leading with a discount every time

Training shoppers to expect a code if they abandon their cart creates an incentive to abandon on purpose. Reserve discounting for later in the sequence, not the opening message.

Not excluding completed orders

If your flow isn't set up to exit someone the moment they complete checkout, you'll send "come back and buy this" emails to people who already bought — a fast way to look careless.

Forgetting mobile checkout friction

If the email links back to a checkout that's slow or clunky on mobile, you're recovering attention only to lose it again at the finish line. Fixing checkout friction is sometimes more impactful than the email itself.

How much revenue can an abandoned cart flow recover?

It varies by store and average order value, but for most ecommerce brands it's consistently one of the top three flows by revenue contribution, alongside the welcome series and post-purchase flow.

Should I use one email or a full sequence?

A sequence of two to three emails generally outperforms a single send, since later emails catch shoppers who didn't respond to the first reminder for a different reason.

Does this work the same way for browse abandonment?

The mechanics are similar, but intent is lower since no item was added to cart, so the messaging needs to work harder to re-establish interest.

What if my emails aren't landing in the inbox?

Recovery flows are only as good as their deliverability. If opens are unexpectedly low across the board, check your sender authentication (SPF, DKIM, DMARC) first.

Conclusion

Abandoned cart emails work because they reach people at the point of highest intent in the entire customer journey — someone who was seconds away from buying. Get the timing, content and discount strategy right, and this single flow can become one of the most reliable revenue sources in your entire email programme, running quietly in the background for every cart that doesn't convert the first time.