How to Migrate From ZoomInfo Sales to lemlist in 7 Steps (2026 Guide)

Why sales teams leave ZoomInfo Sales for lemlist

ZoomInfo contracts are annual-only with a 60–90 day cancellation window, and missing that deadline by even a single day locks you in for another full year. That contract structure alone pushes teams to rethink their stack. But the deeper issue is this: when your subscription ends, you’re required to delete all ZoomInfo data from your systems.

Beyond the contract, ZoomInfo is a data platform. It gives you contacts, but it doesn’t run your outreach. You still need a separate tool for email sequences, LinkedIn automation, and calling. That means paying for two (or more) platforms, syncing data between them, and managing campaigns across disconnected dashboards.

Here’s how the two platforms compare side by side:

What to do before you cancel your ZoomInfo contract

The worst way to leave ZoomInfo is to let the contract expire without a plan. You lose access to data you haven’t exported, and your outreach grinds to a halt while you scramble to rebuild. A bit of prep work prevents both.

Find your renewal date and cancellation window

According to ZoomInfo’s official help content, cancellation requires opting out of auto-renewal at least 60 days before your renewal date. Some contracts have different terms, though: Vendr puts that notice window at 90–120 days for certain agreements. Dig out your original order form and find the exact date.

Send your non-renewal notice in writing

Email your ZoomInfo account rep and legal contact with a clear statement: you are opting out of auto-renewal effective at the end of the current term. Acquiring written confirmation from ZoomInfo acknowledging your cancellation request is important. Save a copy of the confirmation email or note the date and name of the representative you spoke with.

Plan a 4 to 6 week overlap period

Running both tools in parallel for a month or so gives you time to export your data, warm up new sending domains, and validate that your lemlist campaigns perform before your ZoomInfo access ends. This overlap period is the safety net that prevents disruption.

Step 1. Audit and export your ZoomInfo Sales data

Once your non-renewal is confirmed, start pulling data out immediately. Don’t wait until the final week.

Export contacts and company lists as CSV

Go to your saved lists inside ZoomInfo and export everything as CSV files. Prioritize these fields: first name, last name, job title, company name, email address, phone number, industry, and company size. Depending on your ZoomInfo plan, there may be daily row limits on exports, so start early and batch your downloads across several days if the list is large.

Download enriched fields and custom tags

If you built custom tags, list segments, or notes inside ZoomInfo, export those too. Intent data from “Scoops” or buyer intent dashboards won’t transfer as structured fields, so add that context into a notes column in your CSV before you lose access.

Step 2. Clean and format your CSV files for lemlist

Raw ZoomInfo exports are rarely ready to import into another tool. Before uploading anything, run through this checklist:

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  Remove duplicates: Delete rows where the same email address appears more than once

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  Standardize column headers: Match lemlist’s expected field names (firstName, lastName, companyName, email)

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  Split full names: Separate into first name and last name columns if ZoomInfo combined them

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  Drop incomplete rows: Remove contacts that are missing both an email and phone number

lemlist’s AI Variables can also clean data after import. Instead of enriching in one tool and exporting to another for outreach, you find, enrich, verify, and contact leads from a single workflow. The advantage is speed and simplicity: no CSV exports, no sync issues, no duplicate management across tools. Still, starting with a clean file avoids errors in campaign personalization later.

Step 3. Set up your lemlist account and deliverability infrastructure

This step comes before you import leads or launch a single message. Skipping it is the most common reason teams see inbox placement drop during a platform switch.

Buy or connect sending domains

You can connect an existing sending domain or buy one inside lemlist. Authentication is configured for you, so SPF, DKIM, and DMARC are handled automatically. Use a separate sending domain from your primary company domain. That way, outbound reputation issues never spill over to your team’s everyday email.

Start lemwarm before launching campaigns

Warm-up runs in two phases before any campaign: roughly 2–3 weeks of ramp-up to reach your target volume, then 2 weeks of stabilization with no spam, so about one month in total (see lemlist’s lemwarm setup guide). Only begin outreach once your Warmup Score reaches 90+, lemwarm shows no spam, and your inbox rate has stayed above 90% for 14 straight days.

That timeline is exactly why you start lemwarm during the overlap period while ZoomInfo is still active. By the time your ZoomInfo contract ends, your new sending infrastructure is warm and ready.

Step 4. Import leads and map custom variables in lemlist

You can add leads from the lemlist database or upload them via CSV. When you upload your cleaned file, lemlist walks you through field mapping step by step. Match your CSV columns to lemlist’s standard fields, then create custom variables for any ZoomInfo-specific data you exported (intent tags, industry codes, internal notes).

Custom variables are what make your first lemlist campaigns feel like a continuation of your previous outreach, not a cold restart. If you tagged a lead as “evaluating competitors” in ZoomInfo, that context becomes a personalization variable in your new sequences.

Step 5. Re-enrich contacts with lemlist waterfall enrichment

Contact data decays fast. People change jobs, get new email addresses, and switch phone numbers. The data you exported from ZoomInfo may already be weeks or months old by the time you migrate.

lemlist’s waterfall enrichment checks 14+ providers to push valid email find rates to ~80%. Waterfall email enrichment queries 10+ data providers in sequence: if the first provider cannot find a valid address, the system tries the next, and every found email is double-verified before delivery. This cascading approach pushes email coverage to roughly 80%, about double the 40–50% find rate from single-source vendors.

The automatic enrichment finds and verifies the best email, costing 5 credits per found email (see the lemlist academy lesson on waterfall enrichment in lemlist). You only pay for verified results. After enrichment, you’ll have fresher, more complete data than what you left ZoomInfo with.

Step 6. Rebuild your outbound sequences as multichannel campaigns

This is where the switch starts to feel like an upgrade rather than a lateral move.

Recreate your email sequences

Build your email steps inside a lemlist campaign, using the custom variables you mapped in Step 4 for personalization. If you’re staring at a blank screen, lemlist’s Campaign Generator can create a full multichannel sequence in one click based on your ICP and goal. The template library also has proven sequence structures you can adapt instead of starting from scratch.

Add LinkedIn, call, and SMS steps

In ZoomInfo, outreach was usually email-only (unless you had a separate tool wired in). In lemlist, you can add LinkedIn profile visits, connection requests, personalized messages, call steps, SMS follow-ups, and even WhatsApp touchpoints in the same campaign. Conditional logic lets you branch the sequence based on engagement: if a lead opens your email but doesn’t reply, the next step can be a LinkedIn connection request instead of another email.

Step 7. Connect your CRM and run both tools in parallel

Sync HubSpot or Salesforce with lemlist

lemlist connects natively with HubSpot and Salesforce, so lead data, campaign activity, and reply status sync without manual exports. If you were using ZoomInfo’s CRM integration, this replaces it. lemlist also offers API access and 500+ integrations through its marketplace for other CRMs and tools.

Run parallel campaigns until deliverability is fully warm

Keep your existing ZoomInfo campaigns running while you ramp lemlist volume gradually. The Deliverability Hub is a dedicated area in lemlist that brings your deliverability insights into one place, across lemwarm (Warm-up), lemlist (Outreach), and now Inbox placements (see lemlist’s Deliverability Hub guide). Monitor it daily during the overlap period.

Once your inbox placement is stable and reply rates match or exceed what you were getting through ZoomInfo, cut over completely. For most teams, that parallel period lasts two to four weeks after warm-up is done.

What you gain when you switch from ZoomInfo Sales to lemlist

Lead database with waterfall enrichment

lemlist has its own 600M+ contact database and 65M+ company database. Combined with waterfall enrichment from 14+ providers, it replaces both your ZoomInfo data subscription and any separate enrichment vendor you were paying for.

Multichannel outreach across email, LinkedIn, calls, SMS, and WhatsApp

ZoomInfo tells you who to contact. lemlist does that and runs the outreach. Having data and execution in one platform removes the sync gaps, duplicate records, and extra vendor costs that come with a split stack.

Built-in deliverability protection with lemwarm

lemwarm runs inside lemlist’s Deliverability Hub, so warmup and outreach share one dashboard and one set of numbers. You can see which emails landed in spam and on which provider, which is more visibility than most standalone tools hand over. ZoomInfo has no equivalent.

Intent signals that trigger outreach automatically

lemlist’s Intent Signals track events like hiring changes, funding rounds, tech stack shifts, and website visits, then automatically add matching leads to campaigns with messaging personalized to that moment. In ZoomInfo, intent data sits in a dashboard. In lemlist, it triggers action.

Over to you: start your migration with a 14-day free trial

The full migration is seven steps: audit, clean, set up deliverability, import, re-enrich, rebuild sequences, and connect your CRM. With a 4–6 week overlap window, you can complete the switch without losing a single day of outreach.