Email campaigns are the part of your Shopify email programme you actively choose to send. A new product launches on Thursday, Mother's Day is coming, your bestselling coffee is back in stock, Black Friday starts tomorrow: unlike an automated welcome series or abandoned cart flow, a campaign is a one off message sent to a list or segment because something is happening now.
The mistake is treating every campaign as another excuse to send 10% off. A healthy calendar mixes product, promotional, seasonal, educational and customer led emails, so subscribers have reasons to open even when they are not ready to buy. This guide covers the campaign types worth using, real examples, how campaigns sit alongside flows, UK timing, frequency, measurement and the rules, plus the campaign that makes our clients the most money. Klaviyo's benchmarks and the UK guidance were checked on 1 October 2026.
An email marketing campaign is a one off email sent to a list or segment rather than an automated message triggered by behaviour. Most Shopify stores should mix product launches, sales and offers, seasonal campaigns, useful content, social proof, restock news and VIP or early access emails, alongside automated flows such as welcome, abandoned cart and post purchase. Plan around UK dates, segment by engagement and buying behaviour, and measure clicks, placed orders and revenue per recipient. In our experience, the single most profitable campaign is a genuine expiring offer sent to customers who are about to lapse or have yet to make a first purchase.
Klaviyo defines an email campaign as a one time planned email sent to a pre built group of recipients: for example, a new winter blend announced on a Thursday morning to UK customers who bought coffee in the last 12 months. You choose the message, audience and time, which is what separates it from an email that goes automatically to each customer because of something they did. Campaigns cover the shared moments ecommerce cannot trigger from behaviour: launches, sales, restocks, delivery deadlines, new collections, useful articles and VIP early access.
A campaign does not have to be a promotion. Some should sell directly, while others explain how to use a product, why it was made, what customers say, how to choose between products or what has just come back into stock. A fashion brand might lean on drops and styling, a coffee brand on new roasts, brewing guides and subscriptions, a pet food brand on feeding advice and customer stories; the principle is the same, giving people a reason to care before asking them to click.
| Campaign | Flow |
|---|---|
| Sent because you choose a moment | Sent because a customer action or event triggers it |
| One off, to a list or segment | Automated and repeatable, person by person |
| Launches, promotions and seasonal moments | Welcome, abandoned cart, post purchase and win back |
| Needs ongoing planning | Keeps running after setup |
Klaviyo's 2026 benchmarks show why flows deserve serious attention. Flows generate nearly 41% of email revenue from just 5.3% of sends, with an average 5.58% click rate and 2.11% placed order rate against 1.69% and 0.16% for campaigns, roughly three times the clicks and thirteen times the orders. That does not make campaigns unnecessary; it shows they do a different job, creating demand and communicating things no customer trigger can predict.
A good programme runs both: flows for welcome, abandoned cart and checkout, browse abandonment, post purchase, replenishment, win back, reviews and sunset, and a planned calendar of launches, sales, collections, seasonal moments, content, restocks, customer stories and VIP offers. If your flows need work first, read our guide to optimising Shopify email marketing.
You do not need 30 clever formats. Most Shopify stores can build a strong calendar from seven recurring types.
A launch campaign introduces a new product, flavour, colour, range, collaboration or bundle, and Shopify's guidance is to make the product, its benefit and the route to buy clear, with strong images and a clear call to action. For an important product, think in sequences: a teaser, early access for VIPs, the launch, a proof email with reviews or creator content, and a last chance email only if something genuinely ends. Send specialist products first to previous buyers of the category, people who viewed related products, VIPs or the relevant market.
Promotions are understood instantly, whether that is 20% off a category, a bundle, a free delivery threshold, a gift with purchase, a flash sale or clearance. The danger is making discounts your only idea, because subscribers who know a code is always coming have no reason to pay full price. Say what the offer is, what it covers, when it ends and why to act now, keep deadlines genuine, and tailor the angle by segment: your usual coffee is included for a customer, a good time to try us for a non buyer.
Seasonal campaigns tie your store to moments customers already understand: January sales, Valentine's Day, UK Mother's Day, Easter, Father's Day, back to school, Halloween, Black Friday, Christmas gifting, delivery deadlines and Boxing Day. Choose the moments your product genuinely fits, and remember seasonal does not have to mean discount: a gift guide, a recipe or a fireworks guide for pet owners can work better. Our ecommerce marketing calendar lists the main UK and US dates.
How to guides, recipes, styling ideas, founder and sourcing stories, comparisons and buying guides give subscribers something before asking for money, which keeps you in the inbox between purchases. Tie the content naturally back to products, such as a brewing guide linking to the beans it uses or three ways to wear one new piece.
Your customers often make the case better than you can, through reviews, photos, creator content, press, awards and bestseller lists. Make the proof the point of the email rather than one small review under another promotion, and match it to the objection: reviews about fit for shoppers worried about size, taste for food, or ease of use for products that look complicated.
A product returning to stock is a ready made marketing moment, and Shopify suggests simple subject lines such as Look what's back. Send it to the waitlist, people who viewed the product, previous buyers where repeat purchase makes sense and category buyers, and keep it short: the product, why people love it, that it is back, and where to buy. Say if stock is genuinely limited, but never invent scarcity.
Your best customers should not always get the same email as someone who joined yesterday. Early product access, sale access before everyone else, private bundles, loyalty rewards and priority restocks all work, and access itself is often the benefit rather than a bigger discount. Define VIP by real behaviour such as spend, purchase count, recency, subscription or loyalty tier, and keep the bar high enough that it means something.
Across our clients, the campaign that brings in the most revenue is a deliberate expiring offer aimed at the right people. We give a generous discount code to customers we think are about to lapse, and to subscribers who have not yet made a first purchase, then send an email telling them the code expires at midnight. For stores with loyalty programmes, the same email tells customers that the points or credit we gave them expire tonight.
It works because the offer is personal, the deadline is real and the audience is chosen for being on the edge of buying or leaving, so the discount buys back a customer rather than subsidising one who would have bought anyway. Two rules keep it profitable: reserve the generous code for those segments rather than the whole list, or you train everyone to wait for a discount, and let the code really expire, because falsely claiming an offer ends soon is banned under UK consumer law. Knowing each customer's lifetime value tells you how generous the code can afford to be.
There is no universal winning layout, but three subject lines Shopify and inbox archives highlight show what clarity looks like. BAGGU's ✨New Metallics✨ simply announces a product update, trusting fans to care that something is new. ButcherBox's Is your Game Day menu ready? starts with the customer's situation rather than the product, a seasonal angle that works well beyond food. Rothy's The NEW Cruiser Mary Jane is here!, from April 2026, makes the product arrival the news and lets the preview text extend it.
All three brands sell on Shopify, and none of the subject lines tries to explain the whole email. Each gives one clear reason to open: something new, a relevant occasion or a specific product arrival, which matters more than copying another brand's tone.
The more important timing question is usually when to start preparing, because if the first conversation about Black Friday happens a week before it, the problem is planning rather than scheduling. These are planning guidelines, not rules:
| Moment | Start planning | Typical approach |
|---|---|---|
| January sales | December | Launch, category focus, final clearance |
| UK Mother's Day | 4 to 6 weeks before | Gift guide, reminder, delivery deadline |
| Father's Day | 3 to 5 weeks before | Gift guide, categories, last delivery |
| Black Friday | September or earlier | List growth, teaser, VIP access, launch, final call |
| Christmas | September or October | Gift guides, delivery cut offs, gift cards |
| Boxing Day | Before Christmas | Sale launch and segmented follow up |
UK Mothering Sunday falls on a different date from US Mother's Day, so if you sell in both markets, split the campaigns by location, and consider letting subscribers opt out of Mother's Day emails without unsubscribing from everything. Black Friday is a sequence, not one email: list building, a teaser, VIP early access, the main offer, a bestseller follow up, a reminder, a genuine final hours email and Cyber Monday if the offer legitimately continues. Outside welcome codes, a Black Friday code is normally the single discount code that generates the most revenue for our clients; see our guide to preparing your Shopify store for Black Friday.
There is no universal Christmas cut off: yours depends on your warehouse, handling time, carrier, service, destination and bank holidays, so work back from the date you can genuinely meet, then send a gift guide, a standard delivery reminder, a closing notice, an express option and a gift card fallback. Boxing Day is 26 December, so build its sale before Christmas, and think about excluding anyone who bought in the last few days.
There is no correct number. It depends on engagement, purchase frequency, how often you have something useful to say, list size, category, season, the flows already reaching people and deliverability. For many small and medium Shopify stores, one or two useful campaigns a week is a sensible starting point to test, but who receives each email matters more than the count.
Klaviyo recommends setting frequency by engagement, with starting frameworks of up to three sends a week to people engaged in the last 60 days, twice weekly at 90 days, weekly at 120 days and monthly at 180 days. Sending repeatedly to unengaged subscribers damages your sender reputation, because mailbox providers read engagement and complaint signals, so 10,000 engaged subscribers can be worth more than 100,000 who have ignored you for two years. Three campaigns in a week, such as a launch for category buyers, a guide for interested non buyers and a VIP offer for repeat customers, may mean most people receive only one or two.
Open rate is easy to understand but cannot tell you whether a campaign made money. Use these together:
| Measure | What it tells you |
|---|---|
| Click rate | Whether the email persuaded people to visit |
| Placed order rate | How often recipients bought |
| Revenue per recipient | Commercial value per person reached |
| Attributed revenue | The scale of revenue credited to the campaign |
Revenue per recipient is attributed revenue divided by recipients: £8,000 from 20,000 recipients is £0.40 each, which lets you compare campaigns of very different sizes. Benchmarks need context: the top 10% of campaigns reach a 3.38% click rate and 0.36% placed order rate, but food and beverage campaigns average 0.26% placed orders against 0.09% for electronics. Open rate, averaging 31%, is inflated by Apple Mail Privacy Protection, so treat it as a directional signal for subject lines and deliverability only.
Attribution changes the numbers too. Klaviyo's default for new accounts is last touch with a five day window for email clicks and opens, and changing the window changes reported revenue without changing a single real order; read our guide to benchmarking Shopify email revenue before comparing stores. Tag campaigns by type, then compare launches, sales, content, VIP and restock emails as groups.
Email campaigns in the UK sit under the Privacy and Electronic Communications Regulations (PECR) and UK data protection law. The ICO says you must not generally send unsolicited marketing emails to individuals unless they have specifically consented, to the UK GDPR standard of freely given, specific, informed and unambiguous, or the soft opt in applies.
The soft opt in covers existing customers only when every condition is met: you collected the details yourself, during a sale or negotiation, you are marketing your own similar products, and you gave a clear chance to opt out at collection and in every later email. It never covers bought lists, and every marketing email must show who it is from and include a working unsubscribe. Treat this as practical guidance rather than legal advice, and check the ICO's current guidance for your situation.
Campaigns are where email becomes visible, and where it is easiest to become repetitive: product, discount, product, discount. We plan campaigns by reason to send instead, reserving space each month for a product led email, a useful one, a proof or customer email and a timely commercial one, then adding launches, restocks and seasonal moments when they are real. That gives a healthier calendar than asking every Monday what to send on Thursday.
Segmentation comes next. One launch can mean early access for VIPs, a launch email for the engaged list and a proof led follow up for people who clicked without buying, while our highest earning campaign, the expiring offer, only works because it goes to customers on the edge of lapsing or buying for the first time. Why Matters is a Klaviyo Partner and Shopify Select partner, and our email marketing service plans campaigns a month ahead, then tests subject lines, content and timing. The aim is not to send more emails, but to make each one easier to justify.
What is an email marketing campaign?
A one off email you plan and send to a list or segment for a particular purpose, such as a product launch, a sale or a seasonal guide. In platforms such as Klaviyo, campaigns differ from automated flows, which send when an individual customer meets a trigger.
What are the main types of email campaigns?
For a Shopify store: product launches, sales and offers, seasonal campaigns, useful content and brand stories, social proof, restock news, VIP or early access emails and expiring offers for customers about to lapse. A healthy calendar mixes them rather than relying on discounts.
Which email campaign makes the most money?
For Why Matters clients, it is an expiring offer: a generous code for customers about to lapse or subscribers yet to buy, followed by an email saying the code, or the points or credit they were given, expires at midnight.
How often should a Shopify store send campaigns?
There is no universal number. One or two useful campaigns a week is a sensible starting point for many smaller stores, but let engagement decide, sending most often to recently engaged subscribers and less often to the rest.
What is the difference between a campaign and a flow?
A campaign is a one off send you choose, such as a Friday launch. A flow is automated and sends when someone meets a trigger, such as joining your list or abandoning checkout. Shopify stores need both.
What are good email campaign benchmarks?
Klaviyo's 2026 benchmarks put the average campaign at a 31% open rate, 1.69% click rate and 0.16% placed order rate, against 5.58% clicks and 2.11% placed orders for automated flows. Rates vary by industry.
Do I need consent to email customers in the UK?
Generally yes, unless the soft opt in applies: you collected the details yourself during a sale, you market your own similar products, and you offered an opt out at collection and in every email. It never covers bought lists.
You do not need a complicated calendar. Start with a simple monthly mix, such as a product or bestseller campaign in week one, useful content in week two, social proof in week three and a timely offer, restock or VIP message in week four, then add launches, retail moments and an expiring offer for customers about to lapse.
Do not send every campaign to everyone: use engagement, purchase history and product interest to decide who needs each message, and let flows handle individual moments in the background. Then measure commercially, with clicks for interest, placed orders for buying, revenue per recipient for comparison and unsubscribes and deliverability for strain. If you want help planning campaigns and flows together, see our Shopify email marketing agency page.