15 Email Marketing Mistakes Shopify Brands Make (And How to Fix Each)
I audit a lot of Shopify email programs. The same mistakes show up again and again. Not exotic ones. Basic stuff that quietly costs money every single send.
Here are the fifteen I see most, and how to fix each one in Klaviyo. Some you'll recognize. That's the point. The fix is usually simpler than you think.
1. Sending everyone the same email. One message to your whole list trains people to tune out. Build segments in Klaviyo and talk to people based on what they actually do.
2. Sending too often. More emails doesn't mean more revenue. It usually means more unsubscribes. Use Klaviyo's frequency capping and send when you have something worth saying.
3. Ignoring mobile. Most people read on their phone. If your email looks broken there, it's broken. Klaviyo's templates are mobile-responsive, so preview on mobile before every send.
4. Weak subject lines. The best email nobody opens earns nothing. Write subject lines like a human, short and specific, and test them in Klaviyo.
5. Saying nothing worth reading. If every email is a sale, people stop opening. Mix in things that help. Earn the open before you ask for the sale.
6. No clear call to action. Every email needs one job. One button. Tell people exactly what to do next, and don't bury it.
7. No personalization. "Hi there" is a missed chance. Klaviyo pulls in names, past purchases, and browsing, so use it. Relevant beats clever.
8. Ugly emails. If it's hard to read, it doesn't get read. Keep the design simple and on brand. Let the words do the work.
9. Not looking at the data. Klaviyo shows you revenue per email, plain as day. If you're not looking, you're guessing. The numbers tell you what to do more of.
10. Doing everything by hand. Campaigns are work you repeat. Klaviyo flows are work you do once. Set up the Klaviyo flows every store needs and let them run.
11. Never cleaning your list. A bloated list of dead emails wrecks your deliverability. Sunset the people who never open. A smaller active list beats a big quiet one.
12. Sending without testing. Send yourself a test first. Every time. Broken links and typos go out to thousands otherwise, and you can't pull it back.
13. Ignoring the rules. CAN-SPAM and GDPR aren't optional. Keep a real unsubscribe link and honor it. Klaviyo handles most of this if you let it.
14. Skipping the welcome. The moment someone signs up is your best moment, and most brands waste it with silence or one lonely email. Fix the welcome flow first.
15. Not connecting your tools. Klaviyo talks to Shopify, your reviews app, your loyalty program. Hook them up so your emails actually know what your customers are doing.
None of these are hard to fix. They're just easy to ignore when email is the thing you get to last. Pick three from this list, fix them this week, and watch what happens.
Email Marketing Mistake FAQs
What's the most common email marketing mistake?
Sending everyone the same email. No segmentation. It's the one that quietly costs the most, because relevant emails make more money and a generic blast trains people to ignore you.
How often should I email my list?
Often enough to stay top of mind, not so often people tune out. For most Shopify brands that's one to three campaigns a week plus your flows. Watch your unsubscribe rate and let it guide you.
How do I know if my emails are working?
Look at revenue per email and per flow in Klaviyo, not just open rates. Open rate tells you the subject line worked. Revenue tells you the email did.
Does Klaviyo fix these mistakes for me?
Klaviyo gives you the tools: segmentation, flows, testing, reporting. It doesn't decide what matters. That part is strategy, and it's still on you.