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Klaviyo Email & Retention Marketing

Acquisition gets customers through the door; retention keeps them there. We build Klaviyo flows and campaigns that turn one-time buyers into repeat customers, so your growth doesn’t depend only on paid ads.

Why retention matters

Winning a new customer with ads keeps getting more expensive. Selling again to someone who already bought from you costs a fraction of that. Email and SMS are how you do it at scale, and Klaviyo is the tool built for it.

We focus on customer lifetime value (LTV): how much a customer spends with you over time, not just on the first order.

The Klaviyo flows we build

Flows are automated emails triggered by what a shopper does. Once they’re live, they keep selling every day without extra work.

Welcome series

Turns new subscribers into first-time buyers with your story, best sellers and a reason to order now.

Abandoned cart and browse abandonment

Brings back shoppers who left without buying, with reminders timed to when they are most likely to return.

Post-purchase

Thanks new customers, sets expectations on delivery, asks for a review and suggests the next product at the right moment.

Win-back and VIP

Reactivates customers who stopped buying and rewards your best ones before they drift to a competitor.

Campaigns and segmentation

On top of flows, we plan a monthly campaign calendar: launches, promotions, seasonal moments like Black Friday, and content that keeps your brand in mind. We segment your list by behaviour and purchase history so each group gets emails that fit, which protects your deliverability and your sender reputation.

How we work

  1. Retention audit.We review your list health, existing flows, deliverability and where your funnel is leaking revenue.
  2. Setup and core flows.We connect Klaviyo to Shopify, set up tracking and build the flows that drive the most revenue first.
  3. Campaign calendar.Monthly plan, copy and design in English and French.
  4. Test and improve.We A/B test subject lines, send times, offers and content, and report on revenue per recipient, not just open rates.

Why Nexa

  • Small on purpose.The people who build your flows are the ones you talk to.
  • E-commerce only.We know Shopify, product feeds and what repeat purchases do to your margins.
  • Bilingual.Emails written for Quebec, not translated by a machine.
  • Connected to your ads.Email and paid media work together: better retention means you can afford to bid more for new customers.

Pair email with our Google, Meta and TikTok ads management to grow both new and repeat revenue, or see all services.

Email marketing FAQ

Why Klaviyo?

Klaviyo connects directly to Shopify and uses your store data (what people browsed, bought and spent) to trigger the right email at the right time. It’s the platform most growing e-commerce brands use, and the one we specialize in.

Which flows should a Shopify store set up first?

Start with welcome, abandoned cart, browse abandonment and post-purchase. Those four catch shoppers at the moments they are most likely to buy. Win-back and VIP flows come next.

How often should we send campaigns?

Most stores do well with one to two campaigns a week, adjusted by segment. Engaged subscribers get more, inactive ones get less. Sending to everyone all the time is how lists burn out and land in spam.

Can you work with our existing Klaviyo account?

Yes. We start with an audit of what you have, keep what works and rebuild what doesn’t. You don’t lose your data or history.

Do you write emails in French?

Yes. We write in English and French, which matters for Quebec customers and for the Charter of the French Language.

How much does email marketing cost?

Every plan is quoted after a free retention audit, because a store with 2,000 subscribers and one with 200,000 need very different work.

  • “They quadrupled my revenue in the first 3 months of working with them.”

    Nicolas L. Google review, translated from French

  • “They know their stuff when it comes to paid media.”

    Maxime A. Google review

  • “Amazing service and understanding of what I wanted. Executed to perfection.”

    Chantz G. Google review

What we check in your free audit

Then we tell you what we would change first. You don’t have to hire us afterwards.

Ask for the audit
  • Your flowsWelcome, abandoned cart, browse, post-purchase and win-back: what runs and what’s missing.
  • Email’s share of salesHow much of your revenue Klaviyo brings today.
  • Sign-up formsHow visitors join your list, and what they get for it.
  • DeliverabilityWhether your emails land in the inbox, and how healthy your list is.

Find out what your list is leaving on the table.

We’ll audit your Klaviyo account and flows and show you where revenue is slipping away. Free, no obligation.