CRM migration

Migrate from Star CRM to Twenty CRM

Field-level mapping, validation, and rollback between Star CRM and Twenty CRM. We move data and schema; workflows are rebuilt natively in Twenty CRM.

Star CRM logo

Star CRM

Source

Twenty CRM

Destination

Twenty CRM logo

Compatibility

60%

6 of 10

objects map 1:1 between Star CRM and Twenty CRM.

Complexity

CModerate

Timeline

2-4 weeks

Rollback included Accuracy guarantee Field-level validation

Overview

What this migration involves

Moving from Star CRM to Twenty CRM is a migration from a lightweight, niche CRM to a self-hosted, open-source platform with a developer-first design. Star CRM provides core contact and deal tracking but lacks public API documentation and a confirmed bulk export endpoint, which requires live schema probing before any field mapping can be finalized. Twenty CRM accepts standard objects (People, Companies, Opportunities, Tasks, Notes) and supports fully custom objects configured in Settings before import. We resolve Star CRM's undocumented schema by exporting a sample record set during scoping, inferring field names and types from the observed data, and building the mapping against Twenty's typed field model. Attachments require separate file handling because Star CRM exports them individually per record. Workflows, automations, and custom views do not migrate to Twenty; we deliver a written inventory for the customer's team to rebuild post-migration.

Field-level fidelity

Every standard and custom field arrives verified.

Schema-aware mapping

AI proposes the map; you confirm before any record moves.

Relationships preserved

Parent–child, lookups, and ownership stay linked.

Full activity history

Calls, emails, meetings — with original timestamps.

Attachments & notes

Documents, uploads, and inline notes move with the record.

Why teams make this switch

Two sides of the same decision

Leaving

Star CRM logo

Star CRM

What's pushing teams away

  • Limited documentation and public API availability make it difficult to integrate Star CRM with other business tools or build custom workflows.
  • Small teams may eventually need advanced automation, AI features, or scalability that Star CRM does not provide at higher tiers.
  • G2 notes there are not enough public reviews to assess the platform thoroughly, which raises questions about long-term viability and community support.

Choosing

Twenty CRM logo

Twenty CRM

What's pulling them in

  • Top open-source CRM on GitHub with 40.6K stars, giving teams full source code access and infrastructure ownership without per-feature licensing surprises.
  • Free self-hosting under AGPL-3.0 means unlimited users and custom objects for the cost of cloud infrastructure alone, typically $20–100/month.
  • Pricing page explicitly mocks competitors for charging add-on fees for API access, webhooks, and workflows — transparency that resonates with RevOps teams burned by Salesforce.
  • Unlimited custom objects and fields with no price impact, letting teams shape the data model to their business rather than forcing business into rigid schemas.
  • Modern TypeScript/React/PostgreSQL stack means developer-led teams can extend, self-host, or integrate without fighting legacy architecture.

Object mapping

How Star CRM objects map to Twenty CRM

Each row shows how a Star CRM 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.

Star CRM

Contact

maps to

Twenty CRM

People

1:1
Fully supported

Star CRM Contact records map to Twenty's People object. We perform live schema discovery against Star CRM during scoping to identify actual field names (email, phone, address, name fields) since no public API spec exists. Custom contact properties identified during discovery map to custom fields that we pre-create in Twenty's Settings → Data Model before import. The primary email field on People serves as the dedupe key during insert.

Star CRM

Company

maps to

Twenty CRM

Company

1:1
Fully supported

Star CRM Company records map directly to Twenty's Company object. Company name becomes the Company name field, and domain or website maps to the domain field if present. Company is imported before People so that the People → Company relationship is satisfied at the moment of People insert. We resolve the association by matching People records to their parent Company by company name or a discovered foreign key.

Star CRM

Deal

maps to

Twenty CRM

Opportunity

1:1
Fully supported

Star CRM Deals map to Twenty's Opportunity object. Deal stage maps to the Opportunity stage field, and deal value maps to the amount field. Pipeline stages from Star CRM are mapped to Twenty's Opportunity stage values during the scoping call, since stage names and counts differ between platforms. Stage-specific probability and closed-won/closed-lost dates migrate to corresponding fields on Opportunity.

Star CRM

Deal Stage

maps to

Twenty CRM

Opportunity Stage

lossy
Fully supported

Each Star CRM pipeline's stages are mapped to Twenty Opportunity stage values. We capture the stage order and probability from Star CRM and reproduce it in Twenty's Opportunity pipeline configuration. Closed-won and closed-lost stage transitions are preserved to maintain historical pipeline integrity.

Star CRM

Activity

maps to

Twenty CRM

Task or Note

1:1
Fully supported

Star CRM Activity records (calls, emails, meetings, notes) map to Twenty Tasks and Notes. We infer the activity type from the source data during discovery and route records to the appropriate Twenty object. Task and Note records are linked to the parent People or Company by resolving the contact or company reference from Star CRM. Activity timestamps are preserved on the Twenty record's creation date or a dedicated activity-date field.

Star CRM

Lead

maps to

Twenty CRM

People

many:1
Fully supported

Where Star CRM distinguishes a Lead object from Contact, we export Leads separately and merge them into Twenty's People object. The original Star CRM Lead source or lead status is preserved as a custom field on the People record. We flag any Lead-specific properties during discovery that do not map directly to standard People fields for custom field creation in Twenty.

Star CRM

User

maps to

Twenty CRM

Member

1:1
Fully supported

Star CRM User records (name, email, role) map to Twenty Members via email matching. We extract every distinct user referenced on Contact, Company, Deal, and Activity records and match by email against the Twenty Members list. Any Star CRM Owner without a matching Twenty Member goes to a reconciliation queue for the customer's admin to provision before record import resumes.

Star CRM

Custom Property

maps to

Twenty CRM

Custom Field

lossy
Fully supported

Star CRM custom fields on any object require field-level mapping work. We read the observed source schema during discovery (via live API probing) and document all custom property names, data types, and sample values before mapping them to Twenty custom fields. Twenty custom fields must be created in Settings → Data Model before CSV import begins; the import creates records, not fields. We pre-create all required custom fields during the Twenty workspace setup phase.

Star CRM

Tag

maps to

Twenty CRM

Custom Field or Label

lossy
Fully supported

Star CRM tags on Contacts or Deals transfer as label values. Multi-select tags may map to a Twenty custom field with multiple values or to a separate tagging configuration depending on the customer's preference. We preserve tag names and apply them consistently during import. The customer's admin chooses the tag strategy during scoping.

Star CRM

Attachment

maps to

Twenty CRM

Attachment

1:1
Fully supported

Star CRM exports attachments as individual files per record, not as a structured archive. We download all attachment files, build a manifest linking each file to its parent record ID (Contact, Company, or Deal), then re-associate them in Twenty during upload. This step adds time proportional to attachment volume. We handle both document attachments and inline email attachments from activity records.

Gotchas + challenges

What specifically takes care here

Platform-specific issues from each side, plus the pair-specific challenges that don't show up on either platform's page on its own.

Star CRM logo

Star CRM gotchas

High

Sparse public documentation and no published API spec

High

No bulk export endpoint confirmed

Medium

Attachment export produces individual files per record

Twenty CRM logo

Twenty CRM gotchas

High

Import order is enforced and critical

High

Export limited to 20,000 records and visible columns only

Medium

Soft-deleted records count toward uniqueness and trigger restores

Medium

API rate limits cap at 200 req/min on Organization tier

Low

No native email sequences — follow-up cadences require external tools

Pair-specific challenges

  • Star CRM has no public API documentation or bulk export endpoint

    Star CRM does not publish API documentation or a developer portal, and research has not confirmed a bulk data export or batch API endpoint. We cannot programmatically enumerate the schema or verify field names before migration. We handle this by performing a live API discovery call during scoping, exporting a sample record set to infer the actual field structure, and building field mappings from observed data. If large databases require record-by-record extraction, export time scales significantly and we schedule extraction during off-peak hours to avoid session timeouts.

  • Twenty custom fields must exist before CSV import

    Twenty's CSV import creates records but not fields. We create all custom fields in Settings → Data Model before any import begins. Star CRM's custom properties are discovered during the scoping phase through live API probing, but if additional custom fields surface after migration begins, the import pauses while we add the new field to Twenty and re-run the affected batch. We mitigate this by running a thorough discovery pass and exporting all observed custom field names before beginning the Twenty workspace setup.

  • Twenty does not migrate workflows or automations

    Workflows and custom sequences in Star CRM do not migrate to Twenty. Twenty has a workflow builder for defining custom automation sequences, but Star CRM's automation model (if any) is not documented. We do not rebuild automations as part of the migration scope. We deliver a written inventory of any Star CRM automation configuration discovered during scoping, with a recommended approach for recreating equivalent behavior in Twenty's workflow builder. The customer's admin handles the rebuild post-migration.

  • AGPL-3.0 licensing has implications for self-hosted deployments

    Twenty CRM uses the AGPL-3.0 license for its self-hosted deployment. Teams moving from Star CRM's proprietary SaaS model to Twenty's self-hosted option must assess whether the AGPL-3.0 license is compatible with their internal policies, especially if they plan to modify the source code or build proprietary integrations on top of it. Twenty also offers a hosted cloud option with commercial terms for teams that prefer not to self-host. We flag this distinction during scoping so the customer's legal and engineering teams can confirm the deployment model before migration.

  • Star CRM attachments export as individual files requiring manifest build

    Star CRM exports attachments as separate files named by the system, with no structured archive linking files to records. A contact with three email threads and two documents produces five individual files. We download all files, build a manifest mapping each file to its parent record ID, and re-associate them in Twenty during upload. This adds time for projects with high attachment volume and requires a separate file-handling phase after the main record import.

Migration approach

Six steps for a successful Star CRM to Twenty CRM data migration

  1. Live schema discovery on Star CRM

    We perform a live API discovery session against the customer's Star CRM instance. Because Star CRM has no public API documentation, we probe the API with authenticated requests to enumerate object types, field names, and relationships from the observed response structure. We export a sample record set (typically 50-100 records per object) to infer data types, date formats, custom property names, and attachment URLs. The discovery output is a written schema summary and a preliminary field mapping document against Twenty's standard objects.

  2. Twenty workspace setup

    We configure the destination Twenty workspace before any data import. This includes creating all custom objects and custom fields identified during Star CRM discovery, configuring Opportunity stage values to match the Star CRM pipeline stages, inviting all team members who will be referenced as record owners (invitations must be accepted before import), and setting up the initial Company and People record types if needed. Fields are created in Settings → Data Model; Twenty does not auto-create fields during CSV import.

  3. Data export from Star CRM

    We export data from Star CRM using the API endpoints discovered during scoping. If a bulk export endpoint is not available, we automate repeated API calls with pagination to extract records in batches. Export runs in dependency order: Companies first, then Contacts, then Deals, then Activities. We download all attachment files in parallel, build a manifest linking each file to its parent record ID, and store the manifest alongside the exported CSVs. We run exports during off-peak hours to minimize the risk of session timeouts on the Star CRM side.

  4. Data transformation and field mapping

    We transform exported records into Twenty's CSV import format. This includes mapping Star CRM field names to Twenty field names using the discovery-phase mapping document, applying format transformations (date formats, phone number normalization, address splitting), computing any split or merge logic (such as Lead-to-People merging), and resolving Owner references by matching Star CRM user emails to Twenty Member records. Any Star CRM records with unmapped fields are flagged in a reconciliation report for the customer's review before import.

  5. Staged import into Twenty

    We import records into Twenty in strict dependency order: Companies (People and Opportunity lookups depend on them), then People (Opportunity lookups depend on them), then Opportunities (with Company and Member lookups resolved), then Tasks and Notes (with People and Company lookups resolved). Each phase emits a row-count reconciliation report showing records imported, records skipped (with reason), and records held in a deferred queue. We resolve deferred records before moving to the next phase. Attachment files are uploaded after the main record import, associated to their parent records via the manifest.

  6. Cutover, validation, and handoff

    We freeze writes to Star CRM during the cutover window, run a final delta migration of any records modified during the migration window, then enable Twenty as the system of record. We validate by matching record counts, spot-checking 25-50 records against the Star CRM source, and verifying Opportunity stage distributions and Activity timelines. We deliver the workflow and automation inventory document to the customer's admin team. We support a one-week hypercare window for reconciliation issues. We do not rebuild automations, sequences, or custom views as part of the migration scope; those require separate configuration work by the customer's team.

Platform deep dives

Context on both ends of the pair

Star CRM logo

Star CRM

Source

Strengths

  • Clean, focused interface for contact and relationship management
  • Positive user sentiment on G2 with a 4.5 out of 5 star rating
  • Straightforward core CRM feature set suitable for small teams
  • Provides visibility into customer interactions and sales activity

Weaknesses

  • No publicly documented API or developer portal
  • Limited review volume makes long-term platform health difficult to assess
  • Appears to lack advanced automation, AI, or enterprise-scale features
  • Data portability and export options are not well documented
Twenty CRM logo

Twenty CRM

Destination

Strengths

  • AGPL-3.0 open-source license with full source code on GitHub — no vendor lock-in, no sunset risk.
  • Unlimited users and unlimited custom objects on self-hosted, with no feature gating based on headcount.
  • REST and GraphQL APIs available on all paid tiers, not locked behind an enterprise add-on fee.
  • MCP server and webhooks shipped as standard features, not premium upgrades.
  • Modern PostgreSQL-backed data model that developer teams can query, extend, and self-host.

Weaknesses

  • Recent v1.0 release means limited production hardening compared to CRMs with multi-year operational track records.
  • No native email sequencing or sales engagement tools — follow-up cadences require a separate platform.
  • No native two-way email sync or inbox integration, requiring third-party connectors for full activity logging.
  • Self-hosting 'free' pricing hides real infrastructure and DevOps costs that stack up over time.
  • Workflow automation is functional but lacks the complexity needed for sophisticated multi-step sales motions.

Complexity grading

How hard is this migration?

Moderate CRM migration. 4 of 8 objects need a mapping; the rest are 1:1.

C

Overall complexity

Moderate migration

Derived from compatibility, mapping clarity, API constraints, and data volume across Star CRM and Twenty CRM.

  • Object compatibility

    C

    4 of 8 objects need a mapping; the rest are 1:1.

  • Field mapping clarity

    C

    Field mapping is derived from defaults — final spec confirmed during the sample migration.

  • Timeline complexity

    B

    8-object category — typical timelines run 2–7 days end-to-end.

  • API constraints

    B

    Star CRM: Not applicable.

  • Data volume sensitivity

    B

    Star CRM doesn't expose a bulk API — REST + parallelization used for high-volume runs.

Estimator

Estimate your Star CRM to Twenty CRM migration cost

Rule-based pricing — no per-record fees, no manual quotes. Migrations over 2M records are scoped individually.

Step 1

What are you migrating?

Pick a category, then your source and destination platforms.

Category

FAQ

Frequently asked questions about Star CRM to Twenty CRM data migrations

Answers to the questions buyers ask most during Star CRM to Twenty CRM migration scoping. Not seeing yours? Book a call.

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Most migrations land between two and four weeks for accounts under 5,000 contacts and 2,000 deals with no custom objects. Migrations with heavy attachment volume (thousands of individual files), custom fields across all objects, or large activity histories extend to four to six weeks because of the per-record Star CRM export workaround and the file-to-record association step. The lack of a confirmed bulk export endpoint on Star CRM is the primary variable that affects timeline.

Adjacent paths

Related migrations to explore

Ready when you are

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