CRM migration

Migrate from Fat Free CRM to HubSpot

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

Fat Free CRM logo

Fat Free CRM

Source

HubSpot

Destination

HubSpot logo

Compatibility

100%

12 of 12

objects map 1:1 between Fat Free CRM and HubSpot.

Complexity

BStandard

Timeline

48–96 hours

Rollback included Accuracy guarantee Field-level validation

Overview

What this migration involves

Fat Free CRM stores records in a self-hosted Ruby on Rails database — Contacts, Accounts, Opportunities, Tasks, and custom fields in a normalized SQL schema. HubSpot uses a flat properties bag per object with special semantics for lifecycle_stage (contacts only), deal pipelines, and engagement history. The migration requires database read access or a full CSV export from the Rails app, then a property-by-property mapping pass that accounts for HubSpot's reserved property names, pick-list constraints, and object-level association limits. We preserve original created_at and updated_at timestamps as custom datetime properties since HubSpot's native timestamps reflect import time. Tasks in Fat Free CRM become HubSpot engagements (calls, emails, meetings) with original owners matched by email against HubSpot users. Tags from Fat Free CRM require a custom multi-value or comma-joined property since HubSpot has no native tags-without-semantics equivalent outside its marketing lists. Automations and group-permission logic in Fat Free CRM have no HubSpot analogue and must be reconstructed as HubSpot workflows or preserved as documentation for your admin team.

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

Fat Free CRM logo

Fat Free CRM

What's pushing teams away

  • The user interface feels dated compared to modern SaaS CRMs, and G2 reviewers consistently rate the UX as needing significant improvement.
  • Community development has slowed — Bitrix24's comparison page explicitly notes it is unclear whether Fat Free CRM is still actively maintained, raising long-term support concerns.
  • No native public API means third-party integrations require direct database access or custom Rails code, complicating connections to email, calendars, or other tools.
  • Lacks the reporting depth, automation builder, and sales intelligence features that teams outgrow as they scale beyond basic contact and opportunity tracking.
  • Hosting, maintenance, security patching, and upgrades fall entirely on the customer, creating hidden operational overhead that grows over time.

Choosing

HubSpot logo

HubSpot

What's pulling them in

  • Lowest barrier to entry of any major CRM — the free tier with unlimited contacts lets teams validate fit before committing to a paid plan, according to G2 and Capterra reviewers.
  • Native integration between the CRM and sales engagement tools (sequences, email tracking, dialer) means no separate sync configuration, a theme across G2 Sales Hub reviews.
  • Pipeline visualization, deal tracking, and automated workflows are consistently praised as intuitive and easy to set up without developer involvement.
  • Strong onboarding for new team members — reviewers on Capterra and G2 highlight how quickly new reps become productive without formal training.
  • The HubSpot platform ecosystem (Marketing, Sales, Service, CMS hubs) allows growing companies to consolidate tools without building new integrations.

Object mapping

How Fat Free CRM objects map to HubSpot

Each row shows how a Fat Free CRM object lands in HubSpot, including any object-level transformations, lookup resolution, or schema-design dependencies.

Typical mapping — final map is confirmed during the sample migration step.

Fat Free CRM

Contact

maps to

HubSpot

Contact

1:1
Fully supported

Fat Free CRM contacts map directly to HubSpot contacts. First name, last name, email, phone, and job title pass through as HubSpot properties with the same values. HubSpot's lifecycle_stage is applied as a default based on the Fat Free CRM contact's status field — active contacts default to 'customer' or 'lead' per your specification.

Fat Free CRM

Contact.status = 'converted'

maps to

HubSpot

Contact (lifecycle_stage = 'customer')

1:1
Fully supported

Fat Free CRM contacts with status 'converted' land in HubSpot as lifecycle_stage 'customer'. This preserves the conversion event without a separate lead record. If your Fat Free CRM uses a custom status field for lifecycle, we map each value to the nearest HubSpot lifecycle stage during migration.

Fat Free CRM

Account

maps to

HubSpot

Company

1:1
Fully supported

Fat Free CRM accounts map to HubSpot companies. Company name, domain, industry, employee count, and annual revenue map to HubSpot's corresponding company properties. Parent-account hierarchies in Fat Free CRM translate to HubSpot's parent company association field. We also preserve the account type field as a custom property since HubSpot lacks a native equivalent for categorizing accounts by type.

Fat Free CRM

Opportunity

maps to

HubSpot

Deal

1:1
Fully supported

Fat Free CRM opportunities map to HubSpot deals with stage, amount, close date, and probability preserved. The opportunity name becomes the deal name. HubSpot's deal pipeline stages are configured to match the stage names from your Fat Free CRM setup, with probability values carried over as deal probability custom fields.

Fat Free CRM

Task

maps to

HubSpot

Engagement (call, email, or meeting)

1:1
Fully supported

Fat Free CRM tasks map to HubSpot engagements based on their type field. Tasks flagged as calls become HubSpot call engagements with duration and outcome preserved. Email tasks become email engagements with subject and body. General to-do tasks become HubSpot tasks. Owner is resolved by email match to HubSpot users.

Fat Free CRM

Note

maps to

HubSpot

Note

1:1
Fully supported

Fat Free CRM notes map to HubSpot notes on the associated contact or company record. Original timestamps and note body text are preserved. Rich-text formatting is converted to HubSpot's note content format. Notes with attachments trigger a separate file-migration step to HubSpot Files.

Fat Free CRM

Tag

maps to

HubSpot

Custom property (comma-joined or multi-value)

1:1
Fully supported

Fat Free CRM tags do not have a native HubSpot equivalent with the same semantics. We create a custom contact and company property (e.g., 'FFCRM_Tags') and join tag values with commas, or create a multi-select pick-list property if the unique tag count is under 200 values. Tag frequency is preserved as a count property for reporting continuity.

Fat Free CRM

Group

maps to

HubSpot

Custom property + HubSpot team

1:1
Fully supported

Fat Free CRM groups control data visibility and user permissions. HubSpot's teams are assignment buckets only — they do not enforce record-level sharing rules equivalent to Fat Free CRM's group model. We map each Fat Free CRM group to a HubSpot team and surface the original group membership as a custom contact/company property for admin reference.

Fat Free CRM

Attachment (file on record)

maps to

HubSpot

HubSpot File + file association

1:1
Fully supported

Fat Free CRM file attachments are downloaded from the Rails storage path and re-uploaded to HubSpot Files. Each file is associated back to the originating contact, company, or deal record. Files over 300MB are flagged for manual handling since HubSpot's file hosting has a per-file size cap.

Fat Free CRM

Custom field (plugin-added column)

maps to

HubSpot

HubSpot custom property

1:1
Fully supported

Custom fields added via Fat Free CRM plugins or Rails migrations become HubSpot custom properties. We infer the HubSpot property type from the database column type — varchar becomes string, integer becomes number, boolean becomes enumeration, date becomes date. Some Fat Free CRM field names may collide with HubSpot-reserved names and require a rename during mapping.

Fat Free CRM

Campaign

maps to

HubSpot

HubSpot List or custom property

1:1
Fully supported

Fat Free CRM campaign tracking (if enabled via plugin) has no direct HubSpot equivalent without Marketing Hub. We preserve campaign membership as a contact property and recommend rebuilding campaign logic in HubSpot's lists once you have a Marketing Hub seat.

Fat Free CRM

User / Owner

maps to

HubSpot

HubSpot user (owner)

1:1
Fully supported

Fat Free CRM users are matched to HubSpot users by email address. Unmatched owners are flagged before migration so your team can invite them to HubSpot first or assign their records to a fallback owner. User role permissions in Fat Free CRM do not transfer — those must be reconfigured in HubSpot's native roles and teams.

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.

Fat Free CRM logo

Fat Free CRM gotchas

High

No public REST API forces direct database extraction

Medium

Plugin-extended schema may alter core tables

Medium

Attachment files live on the host filesystem

Low

Users and groups must be manually remapped in the destination

HubSpot logo

HubSpot gotchas

High

Marketing Contacts billing model is migration-critical

High

Feature tier gating is not visible until onboarding

Medium

Mandatory onboarding fees inflate year-one cost

Medium

HubSpot CSV importer cannot migrate engagements or attachments

Medium

Custom objects require Enterprise and a pre-existing schema

Pair-specific challenges

  • Fat Free CRM has no native API — extraction requires database access or CSV export

    Fat Free CRM is a Rails application without a documented public REST API. Migration extraction depends on either direct database read access (MySQL, Postgres, or SQLite) or a CSV export run through the Rails console. If your instance is hosted on Heroku with a managed database, read access requires a read replica or temporary credentials. We handle the extraction logistics in the planning phase — the database connection string or console access determines the timeline for the initial data pull. We always recommend a database backup before any read operation.

  • HubSpot lifecycle stage applies to contacts only — Fat Free CRM leads need a routing decision

    Fat Free CRM separates Leads from Contacts; HubSpot consolidates everything into a single Contact object with lifecycle_stage as the governing property. When migrating leads, we apply a lifecycle_stage default based on the lead's status field in Fat Free CRM. If your Fat Free CRM lead records use custom statuses, we need a mapping table before migration — otherwise leads default to 'subscriber' in HubSpot. Contacts with status 'converted' in Fat Free CRM route to lifecycle_stage 'customer'. This mapping is confirmed during the sample migration review before the full run.

  • HubSpot reserved property names block some Fat Free CRM field names

    HubSpot maintains a list of reserved property names that cannot be recreated as custom properties — for example, 'email_confirmed', 'associatedcompanyid', and 'num_associated_deals' are system-managed and read-only. If your Fat Free CRM uses custom field names that collide with HubSpot's reserved list, we rename them during mapping and document every rename in the field mapping spreadsheet. Collisions are caught during the pre-migration audit and resolved before any import runs against your HubSpot instance.

  • Fat Free CRM group permissions have no HubSpot sharing-rule equivalent

    Fat Free CRM's Groups and Teams objects enforce record-level visibility — users in one group cannot see records owned by users in another group. HubSpot's sharing model is role-based and object-level (contacts, companies, deals) rather than group-based, and there is no direct equivalent to Fat Free CRM's group permission enforcement. We map the original group membership to a contact/company property so your admin can use HubSpot's native sharing rules to approximate the original permission model. Any group-level access logic must be rebuilt manually in HubSpot's roles and teams settings after migration.

  • Fat Free CRM custom fields from plugins become untyped HubSpot properties until validated

    Fat Free CRM plugins add custom database columns that may use Ruby type semantics (serialized hashes, polymorphic references, or JSON columns) that don't map cleanly to HubSpot's property type system. We inspect each custom column's data in the source database and infer the closest HubSpot type (string, number, date, enumeration). For columns storing serialized Ruby objects or JSON, we default to a string property and surface them for your admin to review — complex nested data often needs a manual cleanup or a separate lookup table to be useful in HubSpot.

Migration approach

Six steps for a successful Fat Free CRM to HubSpot data migration

  1. Audit Fat Free CRM database and export source data

    FlitStack AI connects to the Fat Free CRM database (MySQL, Postgres, or SQLite) or runs a Rails console export to pull all records. We extract contacts, accounts, opportunities, tasks, notes, attachments, users, groups, and any custom fields from plugin-added columns. We validate record counts against what your team expects and flag any tables with serialized or polymorphic data that may require custom handling. A database backup is confirmed before extraction begins.

  2. Design HubSpot property schema and field mapping plan

    We create the custom properties in your HubSpot instance that Fat Free CRM doesn't have native equivalents for — lifecycle_stage (if not already active), probability overrides, original timestamps, Fat Free CRM record IDs, and tag-compression properties. Reserved property name collisions are resolved by renaming during this phase. The field mapping spreadsheet is built with source column, destination property, mapping type, and transformation logic for every field in scope.

  3. Resolve owners and prepare for deal-contact associations

    Fat Free CRM users are matched to HubSpot users by email. Any owners in Fat Free CRM who do not have a corresponding HubSpot user account are flagged — your team either creates the HubSpot user first or designates a fallback owner. We also sequence the migration so accounts are migrated before contacts, and contacts are migrated before opportunities, ensuring the foreign key relationships (account_id on contacts, opportunity-account links) resolve correctly in HubSpot.

  4. Run sample migration with field-level diff

    A representative sample — typically 100–500 records spanning contacts, accounts, deals, and tasks — is migrated to HubSpot first. We generate a field-level diff comparing source values against destination values so you can verify lifecycle stage routing, tag compression, opportunity-to-deal stage mapping, and owner resolution before the full run. Sample results are reviewed in a call; no full migration proceeds until you sign off on the field mapping.

  5. Execute full migration with delta-pickup and rollback plan

    The full dataset migrates to HubSpot with companies first, then contacts (with lifecycle routing), then deals. Attachments are downloaded from the Rails storage path and re-uploaded to HubSpot Files. A delta-pickup window (24–48 hours) runs after the full import to capture any records modified in Fat Free CRM during the cutover window. An audit log records every operation, and one-click rollback is available if the field-level reconciliation reveals unexpected divergences after the migration commits.

Platform deep dives

Context on both ends of the pair

Fat Free CRM logo

Fat Free CRM

Source

Strengths

  • Zero licensing cost — fully open source under MIT license with no per-user or subscription fees.
  • Complete source code access allows deep customisation of data models, views, and business logic without vendor lock-in.
  • Lightweight Ruby on Rails stack runs on commodity hosting (VPS, Heroku) with standard relational databases.
  • Active community and plugin architecture provide extension points for webhooks, time tracking, and record merging.
  • Self-hosted model ensures full data ownership and no third-party data retention concerns.

Weaknesses

  • No native public API — integrations require direct database queries or custom Rails development, limiting third-party tool connectivity.
  • Dated user interface consistently cited in reviews as a friction point compared to modern SaaS CRM experiences.
  • Slowing development activity raises concerns about security patches, Rails compatibility updates, and long-term viability.
  • Operational burden of self-hosting (server management, backups, upgrades, security) falls entirely on the customer.
  • Limited reporting, automation, and sales intelligence features compared to commercial CRM platforms.
HubSpot logo

HubSpot

Destination

Strengths

  • Genuinely useful free CRM tier with no seat limit on contact records.
  • All-in-one sales engagement layer (sequences, email tracking, calling, dialer) embedded natively in the CRM, eliminating a separate integration.
  • Intuitive interface and fast onboarding for individual reps, per G2 and Capterra reviews.
  • Workflow automation triggers across contacts, deals, and tickets with a visual builder.
  • API coverage for all standard objects including custom objects at Enterprise tier.

Weaknesses

  • Pricing model is contact-based at the marketing layer — importing all records as marketing contacts can multiply the monthly bill by 4×.
  • Feature tier cliffs are frequent surprises: sequences, calling, advanced reporting, and quoting are all gated, often requiring plan upgrades mid-implementation.
  • Mandatory onboarding fees at Professional ($1,500) and Enterprise ($3,500) are not prominently disclosed on the pricing page.
  • API rate limits are restrictive for bulk migration — burst limits of 100-200 req/10sec and search endpoint limits of 4 req/sec require careful job queuing.
  • Custom objects, additional pipelines, and advanced forecasting are Enterprise-only, making cost projections difficult for growing teams.

Complexity grading

How hard is this migration?

Standard CRM migration. 2 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 Fat Free CRM and HubSpot.

  • Object compatibility

    B

    2 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

    Fat Free CRM: Not applicable — self-hosted database has no API rate limiting.

  • Data volume sensitivity

    B

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

Estimator

Estimate your Fat Free CRM to HubSpot 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 Fat Free CRM to HubSpot data migrations

Answers to the questions buyers ask most during Fat Free CRM to HubSpot migration scoping. Not seeing yours? Book a call.

Can't find your answer?

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Most Fat Free CRM to HubSpot migrations complete in 48–96 hours for under 25,000 records when the source database export is straightforward. Larger setups with over 100,000 records or heavy use of Fat Free CRM plugins (which add custom columns requiring type inference and HubSpot custom property creation) extend to 7–12 days. The database extraction and HubSpot property schema setup are the longest planning steps — actual data transfer runs faster once the field mapping is locked.

Adjacent paths

Related migrations to explore

Ready when you are

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