Klaviyo Migration Services
Migrate to Klaviyo without losing a single dollar of revenue.
Switching ESPs is stressful. Lost data, broken flows, deliverability tanks. We've migrated dozens of eCommerce brands to Klaviyo with zero revenue disruption. Here's how.
Most brands know they should be on Klaviyo. The migration is what scares them.
You've heard the horror stories. Revenue drops during the switch. Historical data gets lost. Deliverability tanks because the new domain wasn't warmed up properly. Flows break and nobody notices for weeks.
These are real risks. But they're risks that come from poor planning, not from the migration itself. When a Klaviyo migration is planned and executed by a team that's done it dozens of times, none of these things happen.
We've never had a client lose revenue during a migration. Not once.
Everything you need for a clean, risk-free migration.
We don't just move your data. We rebuild your entire email and SMS strategy inside Klaviyo, better than it was before.
Full Data Migration
Every subscriber profile, purchase event, engagement record, and custom property transferred cleanly to Klaviyo. Nothing gets left behind.
Flow Rebuild (Not Copy)
We don't just replicate your old flows. We rebuild them using Klaviyo's advanced features: conditional splits, A/B testing, dynamic content, and predictive analytics. Better than what you had before.
Domain Warm-Up
Proper IP and domain warm-up so your deliverability stays strong from day one. We gradually ramp sending volume using your most engaged segments first.
Shopify Integration
Native Klaviyo-Shopify connection configured for real-time sync: orders, products, customer events, and catalog data flowing automatically.
SMS Setup
If you're not already using SMS, migration is the perfect time to add it. We set up Klaviyo SMS alongside email so both channels launch together.
Authentication & Compliance
DMARC, DKIM, SPF, and BIMI configured properly. Consent records preserved. GDPR and CAN-SPAM compliance verified during migration.
A proven migration process. No surprises.
Most migrations are complete in 2 to 4 weeks. Here's exactly what happens.
Audit & Plan
We audit your current ESP: what's working, what's not, and what should be rebuilt vs. replicated. You get a detailed migration plan with timeline.
Data & Setup
We migrate all subscriber data, configure Shopify integration, set up domain authentication, and build your Klaviyo account architecture.
Build & Test
Flows rebuilt, campaigns templated, segments created, forms configured. Everything tested thoroughly before we touch a single send.
Warm & Launch
Gradual domain warm-up starting with your most engaged subscribers. Old ESP turned off only after Klaviyo is fully warmed and performing.
Migration done right vs. migration gone wrong.
When Is the Right Time to Migrate to Klaviyo?
If you're an eCommerce brand on Mailchimp, Omnisend, Drip, Constant Contact, or any other ESP, the right time to migrate is usually "now." The longer you wait, the more revenue you're leaving on the table by not using Klaviyo's advanced segmentation, predictive analytics, native Shopify integration, and built-in SMS capabilities.
That said, timing matters for the migration itself. Avoid migrating during your peak season (Black Friday, holiday). The best time is during a slower period when you can afford 2 to 4 weeks of careful, methodical transition.
What Makes Klaviyo the Best ESP for eCommerce
Klaviyo was built specifically for eCommerce. Unlike Mailchimp or HubSpot (which serve every business type), Klaviyo's entire feature set is designed around product catalogs, purchase events, customer lifecycle stages, and revenue attribution. That specificity is what makes it so powerful for eCommerce brands.
The native Shopify integration syncs orders, products, customer profiles, and catalog data in real time. The segmentation engine lets you target customers based on purchase behavior, predicted lifetime value, churn risk, and hundreds of other signals. And the built-in SMS means you don't need a separate platform for text messaging.
As a Klaviyo Master Platinum partner, we've seen firsthand what happens when brands migrate to Klaviyo with the right strategy behind it. The platform upgrade alone doesn't move the needle. But Klaviyo plus a team that knows how to use it? That's where the revenue increase comes from.
Got questions? We've got answers.
No. We migrate 100% of your subscriber profiles, purchase history, engagement data, consent records, and custom properties. Everything is verified post-migration to make sure nothing was lost.
Most migrations are complete in 2 to 4 weeks. The timeline depends on the complexity of your current setup, list size, and how many flows need to be rebuilt. We give you a detailed timeline before we start.
Not with our process. We do a gradual domain warm-up starting with your most engaged subscribers and slowly increasing volume over 1 to 2 weeks. Your old ESP stays active until Klaviyo is fully warmed and performing.
We've migrated brands from Mailchimp, Omnisend, Drip, HubSpot, Constant Contact, ActiveCampaign, Brevo (Sendinblue), Yotpo, and others. If it sends email, we can migrate from it.
Both. Many clients hire us for the migration and then stay on for ongoing Klaviyo management. But if you just need the migration done right, we do that too. Learn about our ongoing Klaviyo services.
No. We rebuild every flow from scratch using Klaviyo's native features: conditional logic, A/B testing, dynamic content, and predictive analytics. Your flows come out better than they were before, not just duplicated.
Migration cost depends on list size, number of flows, and complexity. We scope every migration individually and give you a transparent quote before work begins. Start with a free consultation to get a clear picture.
