
Customer.io

Lemlist
Transfer contacts, and more from Customer.io to Lemlist. 4 of 17 data objects fully compatible. 48-hour delivery with 100% accuracy guarantee.
Get a custom quote for your Customer.io to Lemlist migration based on your specific requirements.
Total contacts, companies, deals, and activities to migrate
Complex data structures and custom configurations
Relationships, attachments, and historical data depth
Standard or expedited migration scheduling
15-minute call • No commitment • Get instant estimate
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If any data is incorrectly migrated, we'll fix it for free, no questions asked. Your data integrity is our top priority.
A quick look at both platforms to help you understand your migration path

Behavioral marketing automation platform
Customer.io is a cloud-based marketing automation platform that enables businesses to send targeted, behavioral-driven messages across email, push notifications, SMS, and in-app channels. It uses customer behavior and data to trigger timely, personalized communications that drive engagement and retention.
Behavior-driven message triggering

Multichannel sales outreach and prospecting platform
Lemlist is a B2B sales engagement platform that enables personalized outreach across email, LinkedIn, WhatsApp, and phone from a single sequence. It offers a 450M+ lead database, email deliverability tools, and AI-powered personalization to help sales teams automate prospecting without losing the human touch.
450M+ lead database with verified emails and phone numbers

"Multichannel sales outreach and prospecting platform"
Lemlist is a B2B sales engagement platform that enables personalized outreach across email, LinkedIn, WhatsApp, and phone from a single sequence. It offers a 450M+ lead database, email deliverability tools, and AI-powered personalization to help sales teams automate prospecting without losing the human touch.
Ideal for: Sales teams and agencies seeking to automate personalized multichannel outreach with built-in lead database and deliverability tools.
450M+ lead database with verified emails and phone numbers
Multichannel sequences (email, LinkedIn, WhatsApp, calls)
AI-powered personalization at scale
Lemwarm email deliverability service included
Learn more at
lemlist.com
See exactly which data objects transfer from Customer.io to Lemlist


Expert-handled migration: Our specialists manage all data mapping and transformations to ensure accurate transfer.
Common questions about migrating from Customer.io to Lemlist.
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Need to go the other way? We support bidirectional migrations.
Lemlist → Customer.ioJoin hundreds of revenue teams using Switcher to streamline their CRM migrations.
Prefer email? talk@ambrstack.com