Klaviyo to Omnisend Migration: The Real 5-Day Plan (Step by Step)

If you run an ecommerce store, you have thought about switching email platforms at least once. Most businesses do not stay on their old platform because it is better. They stay because migration is scary: automations, segments, forms and templates all sit behind the contact list, and one broken flow can cost real revenue.

In this guide I walk through how a Klaviyo to Omnisend migration actually works, step by step, based on my own Shopify store. The video this article is based on is a paid partnership with Omnisend; my opinions are my own.

What actually gets migrated?

The scope depends on the platform you are coming from. Contacts are transferred with their subscription status. Automations, segments, signup forms and your chosen master templates are rebuilt inside Omnisend. That word matters: because automation logic differs between platforms, the migration team does not just import a file, it recreates your live flows.

That means revenue-critical automations such as the welcome series, abandoned cart and browse abandonment can be verified in the new system. Before you submit the request, audit your current contact list and write down exactly which flows must be carried over.

The 4-step migration process

Step 1: Create your Omnisend account and connect the store

Shopify, WooCommerce or any supported platform. Once the store is connected, Omnisend maps your product and customer data structure.

Step 2: Submit the free migration request

On the migration page you describe your current platform, contact count and the structure you want moved. It takes a few minutes. The team gets in touch within 3 to 5 business days.

Step 3: Grant controlled account access

The access invitation arrives by email. Your data stays private and you can revoke access at any time. If anything is unclear, a 30-minute expert session is one form away.

Step 4: Setup and testing

Automations, segments, forms and templates are recreated in your account. You then check that everything works with your branding, offers and customer journey.

Two timelines people confuse

According to Omnisend’s current migration page, the contact transfer itself usually completes within 1 to 24 hours. A full migration, including rebuilt automations, sender domain verification and testing, typically takes up to about 5 business days. Five days is not “uploading a CSV”; it is the time for the system to become operational. Your actual timeline depends on account size and scope.

The most common mistake: closing the old account too early

Do not shut down your previous platform the moment contacts are moved. Omnisend’s own advice is to keep it active until you have confirmed that the new automations trigger correctly and exported any historical reports you need.

Before switching off the old system, test at least these four things:

1. Do new subscribers receive the welcome series?
2. Does a shopper who abandons a cart land in the right automation?
3. Are unsubscribed contacts still suppressed?
4. Is the sender domain authenticated and working?

What to check inside the Omnisend panel

• Automation: review active flows not just by name but by trigger conditions, delays, filters and message content. Save after every change.
• Audience and Segments: high spenders, lapsed customers and product-interest groups should not receive the same message. Build segments on customer data.
• Forms: test signup forms on mobile and desktop. The AI editor lets you adjust brand colours, logo and copy in seconds.
• Templates: hundreds of ready templates. For new stores I recommend the 10% discount template; “Edit with AI” translates and adapts it to your brand.

Cost: up to 35% lower

Based on Omnisend’s public comparison dated May 2026, the Standard plan can cost up to 35% less than the comparable Klaviyo plan depending on contact count and selected features. Not everyone saves the same amount; real cost depends on list size, plan tier, billing period, region and features. Compare current pricing side by side for your own list. In my 10,000-contact scenario the difference was significant.

Who should consider this migration?

• Your cost grows every time your list grows
• You want email and SMS marketing managed in one place
• You want to scale and analyse scattered automations with AI support
• You want to solve this with a few prompts, without deep technical knowledge
• You do not want to pay consultants thousands of dollars for the move

Still, before migrating, inventory your needs: how many automations, segments and forms, and which historical data truly matters. The right migration starts with the right inventory.

Key takeaways

• Contacts move in hours; the full working migration takes up to about 5 business days.
• Automations are rebuilt, not imported, so verify triggers, delays and content.
• Keep the old platform live until the four core tests pass.
• Savings of up to 35% are possible, but compare pricing for your own list size.

FAQ

What gets migrated to Omnisend? Contacts with subscription status are transferred; automations, segments, forms and master templates are rebuilt. Scope varies by source platform.

How long does the migration take? Contact transfer in 1 to 24 hours; full migration including rebuild, domain verification and tests up to about 5 business days.

Should I close my old account immediately? No. Keep it active until new automations are confirmed and historical reports are exported.

Is Omnisend cheaper than Klaviyo? Up to 35% lower depending on contact count and features, according to Omnisend’s May 2026 comparison. Compare for your own list.

Watch the full walkthrough (Turkish): https://youtu.be/PWMnuIvg4q4. Based on a paid partnership video with Omnisend.