CRM migration
Field-level mapping, validation, and rollback between Field Nexus and Twenty CRM. We move data and schema; workflows are rebuilt natively in Twenty CRM.
Field Nexus
Source
Twenty CRM
Destination
Compatibility
12 of 12
objects map 1:1 between Field Nexus and Twenty CRM.
Complexity
BStandard
Timeline
48–96 hours of clock time
Overview
Field Nexus combines field-service dispatch with a lightweight CRM module, storing contacts, companies, work orders, and invoices in a single operational model. Twenty CRM is an open-source CRM built on PostgreSQL with a relational data model that separates People, Companies, Opportunities, Tasks, and Notes into distinct objects with explicit foreign-key relationships. FlitStack AI reads Field Nexus via its REST API (or CSV export for accounts without API access), transforms each record into Twenty's object structure, and sequences the import following Twenty's required order: Companies first, then People (linked via companyId), then Opportunities. Custom fields from Field Nexus are recreated in Twenty's Settings → Data Model before data lands, and owner assignment is resolved by email match against Twenty workspace members. Workflows, automation rules, and invoicing logic do not migrate and must be rebuilt in Twenty's workflow builder. The migration uses a staged approach with a sample run, field-level diff, delta-pickup window, and one-click rollback.
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 Field Nexus 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.
Field Nexus
Contact
Twenty CRM
People
1:1Field Nexus Contact maps directly to Twenty CRM People. The contact's name, email, phone, and job title translate to People fields. The contact's associated company in Field Nexus becomes the companyId lookup in Twenty CRM — the Company must be imported first.
Field Nexus
Company
Twenty CRM
Companies
1:1Field Nexus Company maps to Twenty CRM Companies. Company name, domain/website, industry, employee count, and annual revenue are direct field maps. Companies must be loaded first because People records reference them via companyId foreign key, and FlitStack validates this sequencing before initiating the People import phase.
Field Nexus
Work Order / Job
Twenty CRM
Opportunities
1:1Field Nexus work orders are transformed into Twenty CRM Opportunities using a configurable status-to-stage value map. Work-order status (Scheduled, In Progress, Completed) maps to Twenty's Stage field (Proposal, Negotiation, Closed Won, Closed Lost). Service-address fields map to Twenty's address compound fields on the linked Company record for location context.
Field Nexus
Invoice / Estimate
Twenty CRM
Custom Object: Invoices
1:1Twenty CRM has no native invoicing object, so a custom Invoices object must be created in Settings → Data Model before migration begins. Field Nexus invoices migrate to this custom object, carrying fields for invoice number, amount, status, due date, and a lookup to the linked Opportunity or Contact for relationship traceability.
Field Nexus
Timesheet / Activity Log
Twenty CRM
Tasks
1:1Field Nexus timesheet entries and activity logs are mapped to Twenty CRM Tasks. Each task preserves the original timestamp, assigned user (resolved via email match to Twenty CRM Workspace Members), activity type, description, and a lookup link back to the related Contact or Work Order record for full auditability.
Field Nexus
Customer Note
Twenty CRM
Notes
1:1Field Nexus notes attached to contacts or work orders map to Twenty CRM Notes. The note body, author (resolved as owner via email match), and creation timestamp are all preserved during migration. Notes are linked to the target People or Companies record by ID lookup once those records have been imported into Twenty CRM.
Field Nexus
Custom Property (Contact)
Twenty CRM
Custom Field on People
1:1Field Nexus custom properties on contacts (beyond standard fields like name, email, phone) are migrated as custom fields on the People object in Twenty CRM. These fields must be pre-created in Settings → Data Model with appropriate data types before the CSV import runs to prevent import errors.
Field Nexus
Custom Property (Company)
Twenty CRM
Custom Field on Companies
1:1Field Nexus company-level custom properties migrate as custom fields on Twenty CRM Companies object. Like People custom fields, these must be defined in Twenty's schema before data load occurs, ensuring field existence for all imported company records to reference correctly during migration.
Field Nexus
User / Owner
Twenty CRM
Workspace Members
1:1Field Nexus users and work-order owners are resolved by email match against Twenty CRM Workspace Members. Users without a matching Twenty account are flagged for admin review before migration — their records can be assigned to a fallback owner or the Twenty account can be provisioned first to enable proper owner assignment.
Field Nexus
Attachment / File
Twenty CRM
Notes or External URL
1:1Field Nexus file attachments are preserved as URL references in Twenty CRM Notes where the file remains accessible. If the source URL is not accessible post-migration, the file is downloaded and re-uploaded to Twenty's storage with the URL updated in the note body.
Field Nexus
Automation / Workflow
Twenty CRM
Not Migrated
1:1Field Nexus workflow rules, sequence automations, and dispatch logic do not have an equivalent in Twenty CRM's data model. FlitStack exports workflow definitions as a JSON specification for rebuilding in Twenty's Settings → Workflows section. This is a manual step that requires a Twenty admin.
Field Nexus
Invoice Template / Sequence
Twenty CRM
Not Migrated
1:1Field Nexus invoice templates, numbering sequences, and payment automation rules are not migratable to Twenty CRM's custom object structure. These must be manually recreated in Twenty's invoicing workflow or connected to a separate billing tool. FlitStack provides a structured export of template names, field mappings, and sequence rules as a reference guide for rebuilding.
| Field Nexus | Twenty CRM | Compatibility | |
|---|---|---|---|
| Contact | People1:1 | Fully supported | |
| Company | Companies1:1 | Fully supported | |
| Work Order / Job | Opportunities1:1 | Fully supported | |
| Invoice / Estimate | Custom Object: Invoices1:1 | Fully supported | |
| Timesheet / Activity Log | Tasks1:1 | Fully supported | |
| Customer Note | Notes1:1 | Fully supported | |
| Custom Property (Contact) | Custom Field on People1:1 | Fully supported | |
| Custom Property (Company) | Custom Field on Companies1:1 | Fully supported | |
| User / Owner | Workspace Members1:1 | Fully supported | |
| Attachment / File | Notes or External URL1:1 | Fully supported | |
| Automation / Workflow | Not Migrated1:1 | Fully supported | |
| Invoice Template / Sequence | Not Migrated1:1 | 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.
Field Nexus gotchas
No documented API — migration requires manual web exports
No published pricing — upgrade path and tier limits unknown
Payment link references may not survive schema translation
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
Export and audit Field Nexus data
FlitStack connects to Field Nexus via API or CSV export (depending on account tier) to pull all contacts, companies, work orders, activity logs, notes, and attachments. We run a data audit to identify record counts per object, flag missing required fields, and surface custom property definitions that will need Twenty CRM field pre-creation. A data quality report is delivered before migration planning begins.
Create Twenty CRM schema and invite workspace members
Based on the data audit, FlitStack generates a Twenty CRM schema setup plan: a list of custom fields and any custom objects (e.g., Invoices) that must be created in Settings → Data Model before import. Workspace admins create these fields and invite all team members so owner-email resolution works during migration. This step is a prerequisite — data import cannot begin until the schema is ready.
Build migration package with object sequencing and field mapping
FlitStack transforms Field Nexus records into Twenty CRM CSV format, applying the object mapping and field mapping defined during scoping. The package is sequenced: Companies first, then People (with companyId lookups resolved), then Opportunities (with personId lookups resolved), then Tasks, Notes, and custom-object records. Owner resolution by email match is applied throughout. A sample migration of 100–500 records runs first for validation.
Run sample migration with field-level diff
A representative slice of records migrates to a staging area of the Twenty workspace. FlitStack generates a field-level diff comparing source and destination values for every mapped field, verifying that custom field data landed correctly, stage value mapping applied as expected, and owner resolution succeeded. The diff report is shared with the client for sign-off before the full migration commits.
Execute full migration with delta-pickup window
The full migration runs in staged sequence against the Twenty CRM production workspace. During cutover, a delta-pickup window (typically 24–48 hours) captures any Field Nexus records modified or created after the snapshot date. All operations are logged in a migration audit trail, and one-click rollback reverts to the pre-migration state if reconciliation fails. After rollback confirmation, the Field Nexus account is decommissioned at the client's direction.
Platform deep dives
Field Nexus
Source
Strengths
Weaknesses
Twenty CRM
Destination
Strengths
Weaknesses
Complexity grading
Standard CRM migration. 1 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 Field Nexus and Twenty CRM.
Object compatibility
1 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
Field Nexus: Not publicly documented.
Data volume sensitivity
Field Nexus 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 Field Nexus to Twenty CRM migration scoping. Not seeing yours? Book a call.
Walk through your Field Nexus to Twenty CRM migration with a real engineer — 30 minutes, free, written quote within 24 hours.
Book a free 30 minute consultationAdjacent paths
Other ways to leave Field Nexus
Other ways to arrive at Twenty CRM
Ready when you are
Tell us record counts and timeline. We'll come back with a written quote inside 1 business day — no commitment, no sales pitch.