CRM migration
Field-level mapping, validation, and rollback between Convertkit and Twenty CRM. We move data and schema; workflows are rebuilt natively in Twenty CRM.
Convertkit
Source
Twenty CRM
Destination
Compatibility
12 of 12
objects map 1:1 between Convertkit and Twenty CRM.
Complexity
BStandard
Timeline
24–48 hours
Overview
ConvertKit and Twenty CRM operate on fundamentally different data models. ConvertKit organizes around Subscribers, Tags, Forms, Sequences, and Broadcasts — an email-marketing foundation with no native opportunity, deal, or company hierarchy. Twenty CRM builds on People, Companies, Opportunities, Tasks, and Notes — a relational sales data model with custom objects, field-level permissions, and REST/GraphQL API access. This migration carries ConvertKit subscriber records (with all standard and custom property data) into Twenty People, maps ConvertKit tags to a custom Tags__c multi-select field on People, creates Company records from any domain-based subscriber clustering you specify, and preserves original create/update timestamps for reporting continuity. ConvertKit sequences, automation triggers, form configurations, and broadcast history do not transfer — we export ConvertKit workflow definitions as a rebuild reference for Twenty's workflow builder. The mechanism uses ConvertKit's v3 API to extract subscriber data in bulk, transforms field types to match Twenty's import format, and loads via Twenty's CSV import or batch API endpoints. Scoped read access on ConvertKit keeps your account fully operational during the cutover, with a 24–48 hour delta window capturing in-flight changes before final sync.
Every standard and custom field arrives verified.
AI proposes the map; you confirm before any record moves.
Parent–child, lookups, and ownership stay linked.
Calls, emails, meetings — with original timestamps.
Documents, uploads, and inline notes move with the record.
Why teams make this switch
Leaving
What's pushing teams away
Choosing
What's pulling them in
Object mapping
Each row shows how a Convertkit object lands in Twenty CRM, including any object-level transformations, lookup resolution, or schema-design dependencies.
Typical mapping — final map is confirmed during the sample migration step.
Convertkit
Subscriber
Twenty CRM
People
1:1ConvertKit subscribers map directly to Twenty People records. Every subscriber record — including those added via form, API, or import — transfers with all standard properties (email, first name, last name) and any subscribed-to state preserved. Original create dates surface as a custom field since Twenty sets CreatedDate at import time.
Convertkit
Subscriber (domain-extracted)
Twenty CRM
Company
1:1ConvertKit has no native Company object, but subscriber email domains can cluster contacts by organization. FlitStack creates Twenty Company records for each unique domain with more than one associated subscriber, using the domain as the Company name and setting Website from the domain. Your team specifies the minimum subscriber threshold per domain (default: 2).
Convertkit
Subscriber → Company relation
Twenty CRM
People → Company (relation)
1:1Each ConvertKit subscriber linked to a domain that generated a Company record gets a CompanyId relation on their People record. Subscribers with domains below the threshold land as standalone People with no Company link. This creates the contact-account hierarchy Twenty's CRM model requires.
Convertkit
Tag
Twenty CRM
People.Tags__c (custom multi-select)
1:1ConvertKit's tag taxonomy is a core organizing structure — subscribers often carry 5–20 tags. We create a custom multi-select field on People called Tags__c and populate it with each subscriber's full tag set. Tag values are stored as-is; if you need tag-based segmentation in Twenty, this field drives filter views immediately after import.
Convertkit
Custom Field (text, number, date, select)
Twenty CRM
Custom Field on People
1:1ConvertKit custom fields migrate 1:1 to Twenty custom fields of the matching type. Text → text, number → number, date → date. Select pick-lists in ConvertKit map to Twenty select fields with the same option values — we validate option names match before import to avoid silent failures.
Convertkit
Custom Field (multi-select)
Twenty CRM
Custom Field on People (multi-select)
1:1ConvertKit multi-select fields transfer to Twenty multi-select fields. Option values are preserved verbatim. Note that Twenty's multi-select display differs from ConvertKit's tag-style UI — users see a pill selector in both platforms but the underlying storage and filter behavior are equivalent.
Convertkit
Custom Field (checkbox)
Twenty CRM
Custom Field on People (checkbox)
1:1ConvertKit checkbox fields store true/false values and map directly to Twenty checkbox fields without requiring transformation logic. The boolean values transfer directly between platforms. When ConvertKit uses 1/0 encoding instead of true/false text, our pre-processing step normalizes the values to proper boolean format before loading them into Twenty's People records.
Convertkit
Form
Twenty CRM
No equivalent
1:1ConvertKit forms are embedded email-capture tools with styling, field configuration, and trigger logic. Twenty has no native form builder — forms must be rebuilt using a third-party tool (Typeform, HubSpot Forms, or custom HTML) and integrated via Twenty's API or webhook endpoints. We export form configuration as a reference JSON for rebuilding.
Convertkit
Sequence
Twenty CRM
No equivalent
1:1ConvertKit sequences are time-delayed email series attached to subscribers with delivery state tracking (sent, open, click, replied). Twenty's workflow builder handles trigger-action automations but not email delivery — email sequences must be rebuilt in a dedicated email tool (e.g., Mailchimp, Loops) connected to Twenty via API. We export sequence definitions as a step-by-step rebuild guide.
Convertkit
Broadcast (sent email)
Twenty CRM
Note on People
1:1ConvertKit broadcast history records which subscribers received each campaign. This data is historical and not actionable in Twenty's CRM model. We offer an optional summary: each broadcast becomes a Note on all recipients, recording subject, send date, and open rate for audit continuity. This is opt-in because it can create thousands of Note records.
Convertkit
Product (digital product / subscription)
Twenty CRM
Custom Object: Product
1:1ConvertKit products (digital goods, paid newsletters, subscriptions) have no native CRM equivalent. We create a custom Product object in Twenty with fields for name, price, type, and link to the People record of purchasers. Purchase history migrates as a relation between People and Product.
Convertkit
Unsubscribe state
Twenty CRM
People.optOut (built-in)
1:1ConvertKit's subscribed/unsubscribed/bounced state maps directly to Twenty's optOut boolean field on People. Unsubscribed and bounced contacts set optOut to true, while active subscribers set it to false. Bounced emails set a separate bouncedAt timestamp field on the People record. This dual-field approach ensures Twenty respects global unsubscribe signals from ConvertKit's GDPR and CAN-SPAM compliance record while preserving bounce history for re-permission follow-up workflows.
| Convertkit | Twenty CRM | Compatibility | |
|---|---|---|---|
| Subscriber | People1:1 | Fully supported | |
| Subscriber (domain-extracted) | Company1:1 | Fully supported | |
| Subscriber → Company relation | People → Company (relation)1:1 | Fully supported | |
| Tag | People.Tags__c (custom multi-select)1:1 | Fully supported | |
| Custom Field (text, number, date, select) | Custom Field on People1:1 | Fully supported | |
| Custom Field (multi-select) | Custom Field on People (multi-select)1:1 | Fully supported | |
| Custom Field (checkbox) | Custom Field on People (checkbox)1:1 | Fully supported | |
| Form | No equivalent1:1 | Fully supported | |
| Sequence | No equivalent1:1 | Fully supported | |
| Broadcast (sent email) | Note on People1:1 | Fully supported | |
| Product (digital product / subscription) | Custom Object: Product1:1 | Fully supported | |
| Unsubscribe state | People.optOut (built-in)1:1 | Fully supported |
Gotchas + challenges
Platform-specific issues from each side, plus the pair-specific challenges that don't show up on either platform's page on its own.
Convertkit gotchas
Sequences export as content only, not logic
Free tier has no bulk export capability
Custom fields require recreation before import
Kit branding persists until toggled off
Subscriber count billing is real-time
Twenty CRM gotchas
Import order is enforced and critical
Export limited to 20,000 records and visible columns only
Soft-deleted records count toward uniqueness and trigger restores
API rate limits cap at 200 req/min on Organization tier
No native email sequences — follow-up cadences require external tools
Pair-specific challenges
Migration approach
Audit ConvertKit data export and design Twenty schema
FlitStack connects to ConvertKit via v3 API using a scoped read-only API key. We extract all subscriber records with standard and custom properties, full tag lists, product purchase history, form subscription records, and sequence enrollment state. Simultaneously, we audit your Twenty workspace for existing custom fields, objects, and relation configurations. We generate a field creation manifest listing every new custom field (Tags__c, Original_Created_At__c, etc.) that must exist in Twenty before import, with field types and option values extracted from ConvertKit's schema. Your Twenty admin creates these fields in Settings → Data Model before we proceed.
Build Companies from email domains and resolve People-Company relations
We extract all unique email domains from the ConvertKit subscriber list and count subscriber frequency per domain. Based on your specified threshold (default: 2 subscribers), we generate Twenty Company records with domain as name and domain as the unique identifier. We build a People-Company mapping table resolving each subscriber's email domain to their target Company record. This table drives the companyId foreign key during People import. We surface domains with borderline subscriber counts (2–5) for your review before committing.
Transform and load Companies, then People with resolved relations
Twenty's import dependency order requires Companies to exist before People can reference them. We load Companies first via Twenty's CSV import (or batch API for large datasets), validating record count against the domain list. Once Company records are committed, we load People records with all standard fields, custom property values, Tags__c multi-select data, and resolved companyId relations. Original create and update timestamps from ConvertKit populate custom datetime fields. Unsubscribed and bounced states set the optOut boolean and populate timestamp fields. Records with null emails are isolated and reported separately.
Run field-level diff and sample validation before full commit
We pull a representative sample of migrated records (typically 200–500 across high-tag, low-tag, subscribed, and unsubscribed segments) and generate a field-level comparison report: source ConvertKit value vs. destination Twenty value for every mapped field. We verify tag array populates Tags__c correctly, custom select options match ConvertKit pick-list values, email addresses render correctly, and Company links resolve for multi-subscriber domains. You review the diff report and approve full migration before we commit.
Execute full migration with delta-pickup and post-import verification
Full migration runs against Twenty's live workspace. A delta-pickup window of 24–48 hours captures any ConvertKit records modified during the cutover window (new subscribers added, unsubscribes processed). After delta pickup, we run a reconciliation report comparing record counts by state (active, unsubscribed, bounced) and custom field population rate. We deliver the sequence export JSON for your rebuild reference, the broadcast history Note plan (if opted in), and a post-migration audit showing record counts, error rates, and any records requiring manual follow-up.
Platform deep dives
Convertkit
Source
Strengths
Weaknesses
Twenty CRM
Destination
Strengths
Weaknesses
Complexity grading
Standard CRM migration. 2 of 8 objects need a mapping; the rest are 1:1.
Overall complexity
Standard migration
Derived from compatibility, mapping clarity, API constraints, and data volume across Convertkit and Twenty CRM.
Object compatibility
2 of 8 objects need a mapping; the rest are 1:1.
Field mapping clarity
Field mapping is derived from defaults — final spec confirmed during the sample migration.
Timeline complexity
8-object category — typical timelines run 2–7 days end-to-end.
API constraints
Convertkit: Not publicly documented; varies by account tier.
Data volume sensitivity
Convertkit doesn't expose a bulk API — REST + parallelization used for high-volume runs.
Estimator
Rule-based pricing — no per-record fees, no manual quotes. Migrations over 2M records are scoped individually.
Step 1
Pick a category, then your source and destination platforms.
Category
FAQ
Answers to the questions buyers ask most during Convertkit to Twenty CRM migration scoping. Not seeing yours? Book a call.
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