CRM migration

Migrate from Nimble CRM to Twenty CRM

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

Nimble CRM logo

Nimble CRM

Source

Twenty CRM

Destination

Twenty CRM logo

Compatibility

75%

9 of 12

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

Complexity

BStandard

Timeline

3-5 weeks

Rollback included Accuracy guarantee Field-level validation

Overview

What this migration involves

Moving from Nimble CRM to Twenty CRM is a structural transition that trades Nimble's social-first inbox integration and flat per-seat pricing for Twenty's open-source self-hosted model, unlimited storage, and granular opportunity tracking. Nimble exports Contacts, Companies, Deals, and Activities through a CSV export capped at 500 records per email-delivered file, which requires batched extraction and reassembly before any mapping to Twenty's People, Organizations, and Opportunities schema. We sequence parent objects first (Organizations before People) to satisfy Twenty's foreign-key structure, remap Nimble tags to Twenty's tagging system, and handle Custom Data Fields through the CSV import wizard. Workflow automations, email sequences, and social enrichment URLs do not migrate as code or data. We deliver a written workflow inventory so your team can rebuild automations manually in Twenty.

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

Nimble CRM logo

Nimble CRM

What's pushing teams away

  • The 2GB per-user storage limit fills quickly when email history syncs automatically, forcing teams to delete records or pay for additional storage.
  • The API lacks CRUD operations for Tasks and many other resources, blocking programmatic automation and causing developer frustration on Reddit.
  • Limited customization options prevent teams from adapting pipelines, fields, and workflows to non-standard sales processes as they scale.
  • Reporting is described as difficult by users, with no native Excel export option, making sales analytics a manual and painful process.
  • Performance slows noticeably under larger contact lists, with users reporting longer loading times as the database grows.

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 Nimble CRM objects map to Twenty CRM

Each row shows how a Nimble 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.

Nimble CRM

Contact

maps to

Twenty CRM

Person

1:1
Fully supported

Nimble Contacts map to Twenty Persons. The Contact's name, email, phone, address, social profiles (LinkedIn, Twitter, Facebook URLs), and any Custom Data Fields transfer via CSV export and bulk import. Nimble's social enrichment URLs are stored as text fields on the Person record in Twenty; they do not receive live enrichment. We resolve the parent Organization by exact name matching from the Nimble Company field to preserve the Person-to-Organization relationship.

Nimble CRM

Company

maps to

Twenty CRM

Organization

1:1
Fully supported

Nimble Companies map to Twenty Organizations. The company name, domain, industry, address, phone, and any Custom Data Fields transfer. We export Organizations first in the migration sequence to ensure that the Organization exists before any Person import that references it. Name-based lookup resolution is the primary dedupe mechanism; domain is stored as the website field and used as a secondary dedupe signal.

Nimble CRM

Deal

maps to

Twenty CRM

Opportunity

1:1
Fully supported

Nimble Deals map to Twenty Opportunities. Deal name, value, stage, owner, expected close date, and loss reason fields transfer. Nimble's pipeline stages map to Twenty's Opportunity stage labels, which we configure before migration. Closed-Won and Closed-Lost reasons from Nimble custom fields map to Twenty's lossReason field if present, or to a custom text field for manual categorization in Twenty.

Nimble CRM

Pipeline Stage

maps to

Twenty CRM

Opportunity Stage

lossy
Fully supported

Each Nimble deal pipeline and its associated stage values are documented during scoping and configured in Twenty as Opportunity stages with custom labels. Stage probability weights are set per stage in Twenty's pipeline configuration. The customer chooses whether to replicate Nimble's stage set exactly or consolidate during migration for a cleaner Twenty pipeline.

Nimble CRM

Activity: Task

maps to

Twenty CRM

Task

1:1
Fully supported

Nimble Task records export via CSV with a hard ceiling of 500 records per export file. Large task histories require multiple export requests and reassembly before import into Twenty. We flag any Tasks beyond the export ceiling as a written inventory item for manual follow-up. Task subject, status, due date, and assignment transfer; body text migrates as the Task description field.

Nimble CRM

Activity: Logged Call

maps to

Twenty CRM

Task (Call subtype)

1:1
Fully supported

Nimble Logged Calls map to Twenty Tasks with the call subject and duration preserved. Call disposition and notes transfer to the Task description. We extract the call timestamp and set it as the Task due date or a custom activity timestamp field in Twenty. Call recording URLs are not natively transferable and are flagged as a manual-rebuild item if the customer uses call recording.

Nimble CRM

Activity: Event

maps to

Twenty CRM

Task (Event-like)

1:1
Fully supported

Nimble Events map to Twenty Tasks with the event title, start and end timestamps, and location preserved. Attendee information transfers as a comma-separated list in a custom text field in Twenty since Twenty does not have a native EventAttendee model in the same way as Salesforce. Meeting notes migrate as the Task description.

Nimble CRM

Custom Data Fields (Contacts)

maps to

Twenty CRM

Custom Fields (Person)

lossy
Fully supported

Nimble Custom Data Fields on Contacts map to custom fields on the Person object in Twenty. Field types (text, picklist, date, boolean, number) are mapped to equivalent Twenty field types during the schema setup phase. Picklist values are recreated as options in Twenty's field configuration. We export custom field definitions from Nimble during scoping and pre-create the corresponding fields in Twenty before any Person import.

Nimble CRM

Tags

maps to

Twenty CRM

Tags

lossy
Mapping required

Nimble tags (flat label associations on Contacts and Companies) transfer as tags on the equivalent Twenty record. Multi-value tag fields may need splitting if Twenty's tagging model requires single-tag-per-association on bulk import. We export all tags per record as a comma-separated string in a custom field for initial import, then create native tag assignments from that field. Tag strategy is confirmed with the customer during scoping.

Nimble CRM

Owner

maps to

Twenty CRM

User

1:1
Fully supported

Nimble Owners (users assigned to Contacts, Companies, and Deals) map to Twenty Users. We resolve owners by email match during import. Any Nimble Owner without a matching Twenty User is held in a reconciliation queue for the customer's admin to provision the Twenty User before record import resumes. Owner assignment on Opportunities transfers by email lookup.

Nimble CRM

Messages / Communications

maps to

Twenty CRM

Note (or external reference)

1:1
Fully supported

Nimble message records store outreach history including recipient, timestamp, and type (email/sequence). Full email body content may not transfer cleanly due to HTML formatting differences and storage constraints. We capture recipient, timestamp, and type as a Note on the Person record in Twenty. Full message body migration is scoped as a separate effort if the customer requires it.

Nimble CRM

Attachments

maps to

Twenty CRM

Attachments

1:1
Mapping required

Attachments stored within Nimble's 2GB per-user storage limit are extracted as metadata and re-linked where possible. Full binary attachment migration is not included by default due to the storage constraint on the source side. We document attachment count and total size during scoping and flag any attachments at risk of being lost due to the storage ceiling.

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.

Nimble CRM logo

Nimble CRM gotchas

High

API lacks Task CRUD and bulk operations

High

2GB per-user storage ceiling is tied to email history

Medium

Workflow automations have no export path

Medium

CSV exports capped at 500 records per email delivery

Medium

Email sequences and outreach templates not exportable

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

  • Nimble CSV exports cap at 500 records per file

    Nimble's native export delivers CSV files via email with a hard ceiling of 500 records per file. Large databases require multiple sequential export requests and manual reassembly before mapping to Twenty. We handle this by batching export requests, deduplicating across files, and reassembling the full dataset before mapping. Customers with over 5,000 contacts, 2,000 companies, or 1,000 deals should expect multiple export rounds that extend the migration timeline by one to two weeks.

  • Nimble Workflows have no export path to Twenty

    Nimble's kanban-based Workflow automations (triggers and action sequences) have no documented API or CSV export. They do not survive this migration. We conduct a Workflow audit during scoping, document each workflow's trigger conditions and action sequences, and deliver a written playbook for the customer to rebuild automations in Twenty. The customer should treat workflow rebuild as a separate post-migration project rather than an assumption that it transfers automatically.

  • Nimble API lacks Task CRUD operations

    Nimble's public API does not support Create, Read, Update, or Delete for Tasks, and no bulk endpoints exist. We cannot extract Tasks programmatically. We work around this using Nimble's CSV export at the 500-record ceiling. If the customer's Task history exceeds the export limit, we flag the gap and document the unexported records for manual follow-up. This limitation affects all migration tooling that connects to Nimble via API, not just FlitStack AI.

  • Social enrichment URLs do not update in Twenty

    Nimble's native social media enrichment (LinkedIn, Twitter, Facebook URLs pulled directly into contact records) has no equivalent in Twenty's base platform. Social enrichment URLs export as static text fields and do not receive live updates. If the customer relies on Nimble's social signals for prospecting, they should evaluate a dedicated enrichment tool (Apollo, Clearbit, or Prospeo) that integrates with Twenty post-migration.

  • Email sequences and outreach templates not transferable

    Nimble outreach sequences (multi-step email cadences with delays and templates) exist only within the platform and have no export mechanism. The sequence structure, step count, delay durations, and template bodies do not transfer. We capture the sequence structure as a written inventory during discovery. The customer rebuilds outreach sequences in Twenty using native task sequences or a connected sales engagement tool like Apollo, Smartlead, or Lemlist.

Migration approach

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

  1. Discovery and export planning

    We audit the Nimble CRM account across record counts (Contacts, Companies, Deals, Activities), Custom Data Field definitions, active Workflow count and complexity, tag taxonomy, attachment volume, and storage consumption against the 2GB per-user ceiling. We plan the CSV export batches based on record counts, calculating the number of 500-record export rounds required for each object. The discovery output is a written migration scope, an export schedule, and a schema map identifying which Nimble fields map to which Twenty fields including any required custom field creation in Twenty before data loads begin.

  2. Schema setup in Twenty

    We set up the Twenty destination schema before any data import. This includes creating any custom fields on Person and Organization objects to receive Nimble Custom Data Fields, configuring Opportunity pipeline stages to match Nimble's deal stages, and provisioning Twenty Users to match the Nimble Owner roster by email. The self-hosted Twenty instance must be running and accessible via its API or database connection for us to execute the schema setup and data loads.

  3. Batched CSV extraction from Nimble

    We initiate Nimble CSV exports for Contacts, Companies, Deals, Activities, and Tags in batches of 500 records. Each batch arrives via email and is downloaded, deduplicated, and reassembled into complete datasets. For large databases, we stagger export requests to avoid Nimble's email delivery throttling. Tasks are the highest-risk object due to the API lacking CRUD, so we prioritize the Task export early to confirm the data volume before committing to the full migration schedule.

  4. Data transformation and field mapping

    We transform the exported CSV data to match Twenty's field names and types. Name-based lookup resolution pairs Nimble Contact.company (a free-text company name) to the Nimble Company.name being imported as a Twenty Organization, ensuring the Person-Organization relationship is established before Person import. Tags are normalized to Twenty's tagging format. Custom Data Fields are type-checked against Twenty's field definitions. Any data quality issues (duplicate emails, missing required fields, malformed dates) are flagged in a pre-load reconciliation report for the customer's review before we write to Twenty.

  5. Production import in dependency order

    We run the Twenty import in dependency order: Organizations first (from Nimble Companies), then Persons (from Nimble Contacts with OrganizationId resolved), then Opportunities (from Nimble Deals with PersonId and OrganizationId resolved), then Tasks and Notes. Owner assignment resolves by email lookup to Twenty Users at import time. Each phase emits a row-count reconciliation report before the next phase begins. If the Nimble storage ceiling was approached before export, any attachments or email history at risk are flagged in the reconciliation report.

  6. Cutover, validation, and workflow rebuild handoff

    We freeze Nimble writes during cutover, run a final delta migration of any records modified during the migration window, then mark Twenty as the system of record. We deliver the Workflow and Sequence inventory document, the Custom Field mapping spreadsheet, and the tag taxonomy mapping to the customer's admin team. We support a one-week hypercare window for reconciliation issues. We do not rebuild Nimble Workflows as Twenty workflows inside the migration scope; that is a separate configuration engagement or an internal admin rebuild task.

Platform deep dives

Context on both ends of the pair

Nimble CRM logo

Nimble CRM

Source

Strengths

  • Social media data enrichment automatically populates LinkedIn, Twitter, and Facebook URLs in contact records.
  • Unified contact view combines email history, social profiles, and company data without switching tabs.
  • Flat pricing at $24.90/user/month includes CRM, email marketing, and pipelines without tier gating.
  • Google Workspace and Microsoft 365 integration allows hybrid team compatibility in a single CRM.
  • Contact and activity logging from within the inbox reduces friction for email-driven sales workflows.

Weaknesses

  • The 2GB per-user storage cap fills quickly when email history syncs automatically, limiting historical data retention.
  • The API has significant gaps including no Task CRUD, limiting programmatic automation and third-party tool integration.
  • Limited customization options make Nimble difficult to adapt to non-standard sales processes as teams grow.
  • Reporting is weak with no native Excel export, requiring manual effort for sales analytics and forecasting.
  • Performance degrades noticeably with larger contact lists, creating slow loading times under heavier database loads.
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?

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

B

Overall complexity

Standard migration

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

  • Object compatibility

    B

    1 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

    Nimble CRM: Not publicly documented in summary form..

  • Data volume sensitivity

    A

    Nimble CRM exposes a bulk API — large-volume migrations stream efficiently.

Estimator

Estimate your Nimble 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 Nimble CRM to Twenty CRM data migrations

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

Can't find your answer?

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Most migrations land between three and five weeks for accounts under 15,000 Contacts and 3,000 Deals. The 500-record per-file CSV export ceiling extends the extraction phase for larger databases; accounts with over 10,000 contacts or extensive activity history move to eight to twelve weeks. The 500-record export ceiling is the most common timeline driver because Nimble's API cannot supplement the export for Tasks and there is no bulk endpoint to accelerate extraction.

Adjacent paths

Related migrations to explore

Ready when you are

Move from Nimble CRM.
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