Migrating from Mailchimp, Omnisend or another ESP and considering Klaviyo?
This free eBook walks you through the entire migration, from exporting your data and protecting GDPR consent to activating your first revenue-driving flows. Written by Kubix, a Klaviyo Master Platinum agency, with insight from Dataships.
This isn’t a sales brochure. It’s the same process we use when we migrate brands to Klaviyo ourselves, written down so you can follow it whether you work with us or not.
If any of these sound familiar, this guide was written for you:
Kubix is a Klaviyo Master Platinum agency and Shopify Platinum Partner. We’ve supported dozens of brands through ESP migrations and ongoing Klaviyo growth, so this guide is built on real projects, not theory.
The GDPR and consent chapters are written with Dataships, whose location-responsive consent technology helps brands achieve 80–90% compliant opt-in rates at checkout.
Not necessarily. This guide gives you the full process to do it yourself. If you’d rather take out the guesswork and have a Master Platinum partner handle the migration, IP warming and flow builds for you, that’s what we’re here for.
No ESP migration carries automations over automatically; they need rebuilding. The upside is that this is your chance to improve them. Klaviyo’s Flow Builder supports real-time triggers and conditional splits that most legacy platforms can’t match.
For most scaling eCommerce brands, yes. Subscribed customers deliver 2.4X higher lifetime value, and Klaviyo’s revenue attribution shows you exactly what each flow and campaign generates, so the ROI is measurable rather than assumed.
Not if you handle it correctly. You need to extract opt-in timestamps, consent sources and channel-specific permissions from your current platform before migrating. Chapter four covers this in detail, including how to decide whether to migrate all historical consent or start fresh with high-confidence records.
Yes, provided you export your lists, segments and consent records properly before the switch. The guide covers exactly what to export, how to audit tags, and how to transfer unsubscribe preferences so nothing is lost.
Most migrations take 2–6 weeks depending on list size, the number of automations to rebuild, and how clean your existing data is. The guide includes a flow-mapping exercise to help you prioritise what to rebuild first so revenue-critical automations go live early.
