CRM migration
Field-level mapping, validation, and rollback between Lead Guerrilla and Twenty CRM. We move data and schema; workflows are rebuilt natively in Twenty CRM.
Lead Guerrilla
Source
Twenty CRM
Destination
Compatibility
9 of 11
objects map 1:1 between Lead Guerrilla and Twenty CRM.
Complexity
CModerate
Timeline
3-5 weeks
Overview
Lead Guerrilla has no publicly documented REST API, which means all data export must be performed manually through the admin UI or with direct vendor coordination, extending migration timelines compared to platforms with open APIs. We choreograph CSV-based exports for Contacts and Companies, screenshot-assisted cataloging of activity history, and manual workflow screenshots for the reimplementation playbook. Twenty CRM's open-source TypeScript architecture and GraphQL API provide a modern import target, but the platform does not yet have a native import UI, so we write custom CSV-to-GraphQL ingestion scripts for batch record loading. Marketing automation rules, landing pages, and web forms created in Lead Guerrilla cannot be exported as code or portable assets; we deliver detailed reimplementation inventories for the customer's team to rebuild in Twenty or a complementary marketing tool. The tight 1CRM coupling on the source side means any records with cross-references to 1CRM internal identifiers require manual relinking after migration, which we audit explicitly during scoping.
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 Lead Guerrilla 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.
Lead Guerrilla
Contact
Twenty CRM
People (Person object)
1:1Lead Guerrilla Contact records map to Twenty's People object. Standard fields (name, email, phone, address) migrate directly. Lead scoring values stored as a custom numeric property migrate to a Twenty custom field for lead scoring. The Contact's original 1CRM cross-reference ID is preserved in a custom field for audit. Email addresses serve as the dedupe key during import to prevent duplicate Person records.
Lead Guerrilla
Company
Twenty CRM
Company
1:1Lead Guerrilla Company records map directly to Twenty's Company object. The Company domain name maps to the Website field. Each Company is imported before its linked Contacts so that the Person-to-Company relationship resolves at insert time. If 1CRM cross-references exist, we audit and re-link them manually post-migration using the preserved custom field.
Lead Guerrilla
Segment
Twenty CRM
Custom Field (Tag/Multi-Select) or Custom Object
lossyLead Guerrilla Segments group contacts by form source, behavior, or demographic criteria. Segment membership translates into a dynamic Audience or a custom multi-select field on the Person record in Twenty. During scoping the customer chooses between a static tag-based approach (preserves exact segment membership as of migration date) or a filter-based approach (Twenty custom field conditions that recreate the segment logic). Segment definitions themselves are documented for the customer to rebuild as Twenty views or segments.
Lead Guerrilla
Campaign
Twenty CRM
Custom Object (Campaign) or Opportunity
1:manyMulti-channel campaign configurations from Lead Guerrilla (email, SMS, Twitter, web notification sequences) do not have a direct Twenty CRM equivalent since Twenty's native campaign tracking is oriented toward sales opportunities. We create a custom Campaign object in Twenty matching the channel structure and enrollment history, and map completed campaign enrollments as activity records tied to the relevant Person. The campaign automation logic is cataloged separately for rebuild.
Lead Guerrilla
Landing Page
Twenty CRM
Not migrated (content asset)
1:1Landing pages created in Lead Guerrilla's builder cannot be exported as portable HTML or schema files. We export page metadata (title, URL slug, published status) and redirect configuration, but the rendering code and embed scripts are not portable. The customer must rebuild these assets in Twenty or a dedicated landing page tool. We deliver a page-by-page inventory with field-level mapping to guide the rebuild.
Lead Guerrilla
Web Form
Twenty CRM
Not migrated (content asset)
1:1Web forms embedded as tracking widgets in Lead Guerrilla are content assets. We export form field definitions, submission mappings, and redirect behavior, but form logic (field visibility conditions, required field rules) cannot be extracted. The customer rebuilds forms in their new platform. We provide a field-level inventory of every form so the rebuild is guided rather than ad hoc.
Lead Guerrilla
Marketing Automation Rules
Twenty CRM
Not migrated (automation asset)
1:1Lead Guerrilla's automation engine defines time-based and trigger-based actions (email firing after X hours, campaign enrollment on form submit, score adjustments on page visit). There is no documented export path for these rules. We catalog every active automation via screenshots and admin UI configuration notes during discovery, then deliver a detailed reimplementation playbook mapping each rule to its recommended equivalent in the customer's new marketing automation platform. This is manual rebuild work the customer must budget for.
Lead Guerrilla
Lead Scoring
Twenty CRM
Custom Field on Person
1:1The current numeric lead score per Contact is preserved as a custom field on Twenty's Person object. The scoring model itself (point values per behavior, stage thresholds) is documented for the customer to reconfigure in their new platform, since it lives in the automation engine rather than the contact record.
Lead Guerrilla
Activity History
Twenty CRM
Task and Note records on Person
1:1Contact interactions tracked in Lead Guerrilla (email opens, page visits, form submissions, SMS sends, tweet engagement) are exported as activity history. Due to Lead Guerrilla's lack of API, high-volume activity records require page-by-page or screenshot-assisted cataloging. We import activity data as Task and Note records on the corresponding Person record in Twenty, with the original timestamp preserved for timeline ordering.
Lead Guerrilla
Tag
Twenty CRM
Tag on Person/Company
1:1Contacts and Companies in Lead Guerrilla can be tagged. We export all tag assignments and reapply them as tags in Twenty. Tag naming conventions are preserved exactly as-is to maintain segmentation continuity. If a tag maps to a segment definition, we reference both in the reimplementation playbook.
Lead Guerrilla
User/Owner
Twenty CRM
Workspace Member
1:1User accounts in Lead Guerrilla map to campaign owners and assignment recipients. We export the user list including name and email. Twenty's workspace members are provisioned separately; we map Lead Guerrilla owner references by email match and flag any orphaned assignments for the customer's admin to resolve before migration completes.
| Lead Guerrilla | Twenty CRM | Compatibility | |
|---|---|---|---|
| Contact | People (Person object)1:1 | Fully supported | |
| Company | Company1:1 | Fully supported | |
| Segment | Custom Field (Tag/Multi-Select) or Custom Objectlossy | Fully supported | |
| Campaign | Custom Object (Campaign) or Opportunity1:many | Fully supported | |
| Landing Page | Not migrated (content asset)1:1 | Fully supported | |
| Web Form | Not migrated (content asset)1:1 | Fully supported | |
| Marketing Automation Rules | Not migrated (automation asset)1:1 | Not supported | |
| Lead Scoring | Custom Field on Person1:1 | Mapping required | |
| Activity History | Task and Note records on Person1:1 | Fully supported | |
| Tag | Tag on Person/Company1:1 | Fully supported | |
| User/Owner | Workspace Member1:1 | 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.
Lead Guerrilla gotchas
No documented API for bulk data export
Marketing automation rules are not exportable
Tight 1CRM coupling creates migration blast radius
Overage billing model creates migration cost surprises
Landing page and form assets require rebuild at destination
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
Discovery and export choreography planning
We audit the Lead Guerrilla admin UI across all active modules: Contacts (with lead scoring values), Companies, Segments, Campaigns, Landing Pages, Web Forms, and Marketing Automation Rules. Because no API exists, we design a staged export choreography: CSV exports for contact and company lists, manual screenshot cataloging for campaign configurations and automation rules, and a formal request to 1CRM Systems Corp for any bulk data extracts required beyond what the UI provides. We also identify every 1CRM cross-reference and map it to a re-link plan in Twenty.
Twenty CRM workspace preparation
We set up the Twenty CRM workspace before data arrives: configuring the Company object schema, provisioning custom fields on the Person object (lead score, original Lead Guerrilla ID, segment tags), creating any custom objects required (Campaign, if chosen), and inviting all team members whose email will appear as owner assignments. As Twenty's official migration guide specifies, fields must exist before import; we create all custom fields in Settings before any CSV is processed.
CSV export and data staging
We extract Contacts and Companies as CSV from Lead Guerrilla's admin UI, normalizing field names and formats (phone number formatting, date formats) to match Twenty's expected input. Activity history, campaign enrollment data, and tag assignments are staged as supplementary CSVs. All data is staged in a quarantine environment for deduplication, completeness validation, and format transformation before ingestion.
Custom CSV-to-GraphQL ingestion script development
Since Twenty has no built-in import UI, we write a custom ingestion script that reads the staged CSV files and makes batched GraphQL API calls to Twenty. The script handles company import first (to satisfy Person lookups), then Person records with the company relationship resolved, then activities as Task and Note records on Person, then tags. The script logs every failed record to a reconciliation queue for manual review. We run the script in Twenty's sandbox or dev environment first for validation.
Sandbox migration and reconciliation
We execute the full migration into a staging environment, reconciling record counts (Contacts in, Companies in, Activities in), sampling 25-50 records for field-level accuracy against the Lead Guerrilla source, and verifying Person-to-Company relationship resolution. The customer reviews and signs off before production migration begins. Any mapping corrections, missing fields, or duplicate resolution logic is applied here.
Production migration, cutover, and automation handoff
We run production migration in dependency order: Companies first, then Persons with resolved relationships, then activities. We freeze Lead Guerrilla writes at cutover, run a final delta pass for records modified during migration, then enable Twenty as the system of record. We deliver the Marketing Automation Rule inventory and reimplementation playbook to the customer's team, with landing page and form rebuild guides included. We support a one-week hypercare window for reconciliation issues. We do not rebuild Lead Guerrilla automations inside the migration scope.
Platform deep dives
Lead Guerrilla
Source
Strengths
Weaknesses
Twenty CRM
Destination
Strengths
Weaknesses
Complexity grading
Moderate CRM migration. 4 of 8 objects need a mapping; the rest are 1:1.
Overall complexity
Moderate migration
Derived from compatibility, mapping clarity, API constraints, and data volume across Lead Guerrilla and Twenty CRM.
Object compatibility
4 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
Lead Guerrilla: Not publicly documented.
Data volume sensitivity
Lead Guerrilla 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.
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