Home / Email marketing / Welcome email flow

The welcome email flow we build in Klaviyo, step by step

The first sequence a subscriber ever gets from you. It's the one we build before anything else.

Official Klaviyo PartnerShopify Partners
ThermosGeneProWilsonsLiberation FoodsHusk&Seed
The Liberation Foods welcome email designed by Engage Commerce, a deep green hero reading one hundred percent fairtrade over the snack range
The Mera Mera welcome email designed by Engage Commerce, an arched bathroom mirror over a green tiled vanity with the first order offer and its code
The Kasandrinos welcome email designed by Engage Commerce, olives and oil photographed on white stone above the first order offer
The build

One trigger, four sends, three decisions, one exit

The delays and splits our Automation Playbook draws for this flow.

Trigger

Somebody joins the list

It fires on a newsletter signup, whether that's the on-site popup or a registration on the site. One entry point, so nobody arrives twice.

A signup unit designed by Engage Commerce for Kasandrinos, offering ten dollars off a first order in exchange for an email address, which is the entry point this flow fires on
Immediate
Email one

The introduction

Subject line · Welcome aboard

It lands while you're still on screen. Whatever the signup promised gets honoured here, usually the first-order code.

The Thermos welcome email designed by Engage Commerce, reading welcome to Thermos over an insulated food jar and flask, with twenty percent off a first purchase
The Neutonic welcome email designed by Engage Commerce, cans floating over a snowfield under the line about unlocking flow state
Wait three days
Decision

Has an order been placed in the last three days?

YesExit the flowNoContinue to email two
Email two

The reminder with a deadline

Subject line · [COUPON] Your 10% off expires in two days

The same offer, now finite. We don't add anything new: the reason to act is the clock, not another argument.

A Thermos email designed by Engage Commerce reading that ten percent off is about to end, with the welcome code beside a flask held in gloved hands
A Wilsons email designed by Engage Commerce reading it is almost gone, a boxer dog beside the cold pressed food range
Wait two days
Decision

Has an order been placed in the last two days?

YesExit the flowNoContinue to email three
Email three

The last call

Subject line · [10% OFF] Today's the last day

The offer closes here. Short, one call to action, and it says out loud that this is the last one.

A Thermos email designed by Engage Commerce reading final hours, a man outdoors at dusk holding a flask
A Leisure Hydration email designed by Engage Commerce, cans lifting out of a delivery box above a one day offer
Wait five days
Decision

Has anything been opened in the past ten days?

NoExit the flowYesContinue to email four
Email four

The last shot

A stronger offer than the first three, live for one day. It only goes to the people who are still opening.

A Thermos email designed by Engage Commerce, a flask lit on a dark brick ledge above an early Black Friday offer
A Thermos email designed by Engage Commerce, two women sitting on a drystone wall with flasks above a twenty percent off panel
Exit

The profile leaves the flow

Bought or not, it stops here and the campaign calendar takes over. Nobody sits in a welcome flow twice.

Why it leaks

What it costs to skip a send

Three things that never show up as a problem in a campaign report.

A Vitamin Energy email designed by Engage Commerce, a man mid leap inside a lightning bolt cutout beside the shot bottle
A Wilsons Mother's Day email designed by Engage Commerce, a golden retriever beside the cold pressed food range
A Terrazzo Tiles email designed by Engage Commerce, a dark tiled bathroom with a backlit round mirror above named customer reviews
A Thermos email designed by Engage Commerce that matches the product range to coffee drinkers, meal preppers and everyday hydration
A BlackGold email designed by Engage Commerce, an organic turkey tail extract pouch on stone above three benefit icons
A Terrazzo Tiles email designed by Engage Commerce, a charcoal shower room above a flat lay of tile cleaning products
A Wilsons email designed by Engage Commerce reading a big thank you to dog mums, a dog beside the cold pressed range

The introduction that never happens

Let's face it: a signup with nothing behind it is just a name on a list. The keenest minute you'll ever get out of somebody passes in silence.

One email, and no reason to act today

One welcome, no follow-up, and you're asking for a decision on the spot. Most people don't make it. Nothing ever asks them again.

No exits, so buyers get chased anyway

Without the order checks between sends, somebody who bought yesterday still gets the last-day discount. That's how a list learns to wait for the offer.

Once it's live

What we test, and in what order

Three tests, one at a time: which email carries the offer, the subject line on email one, then how long that first delay runs. Each one runs long enough to be decided on orders, not opens.

A Klaviyo growth overview from a client account with the conversion metric set to placed order, splitting a month of attributed revenue between campaigns and flows over a daily bar chart
The proof

What a rebuilt welcome flow did on one account

One client, one year, one flow.

£75,912from the 10% off welcome flow alone, in a single year, on one rebuilt account.

Rebel Aromas, January to December 2025. Read the case study.

The flow itself
What is a welcome email flow?

A welcome email flow is an automated sequence that sends the moment somebody joins your email list, instead of leaving them to wait for the next campaign. Ours runs four emails across ten days from a newsletter signup, with an order check between each send, so anybody who buys stops hearing about the offer. It's the first automation we build on any account. Somebody has just asked to hear from you: that moment doesn't come round twice.

How many emails should a welcome email flow have?

Four is where we start: the introduction, the reminder with a deadline, the last call, and a final send to the people still opening. A considered purchase usually wants more education between the offers. One product, and you often want fewer. We'll settle the count with you once we can see how long your customers take to buy. It isn't a rule.

When should the first welcome email send?

Immediately. There's no delay before email one in our build: they're still on the site and they still remember why they signed up. If the signup promised a code, that code goes in the first email, not in a follow-up an hour later. Otherwise the promise reads as a trick.

The decisions inside it
Should a welcome email flow include a discount?

Offered one at signup? Then yes, and it belongs in the first email. If you didn't, the flow runs on your story, your bestsellers and the reasons people pick you. And the size of the offer matters less than the deadline on it. Say when it ends: that's what makes sends two and three worth opening.

Is a welcome email flow allowed under UK GDPR and PECR?

Yes, as long as the person opted in themselves and the signup wording said what they'd get. We record consent on the profile with its source and timestamp, keep a one-click unsubscribe in every send, and never run this flow against a bought list or a pre-ticked box. Soft opt-in covers existing customers for similar products. But a newsletter signup is consent in its own right, and it's the cleaner basis to build on.

How do you know whether the welcome flow is working?

Placed order rate and revenue per recipient, read against the flow's own history, not somebody else's benchmark. Open rate tells you the subject line worked. Nothing more. We look at the drop between email one and email two first, because that gap is usually the delay being wrong for your buying cycle, not the copy being weak.

Not got your answer?Chat to us
The source

The ten core flows, drawn the way we build them

Want this flow built on your account?

Bring your Klaviyo login to the first call. We'll read what your welcome flow does today and tell you which of these four sends is missing. Take that away and build it yourself if you like.

Engage CommerceTheo Tziapouras, founder of Engage Commerce

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