CRM migration
Field-level mapping, validation, and rollback between BigChange and HubSpot. We move data and schema; workflows are rebuilt natively in HubSpot.
BigChange
Source
HubSpot
Destination
Compatibility
9 of 10
objects map 1:1 between BigChange and HubSpot.
Complexity
BStandard
Timeline
24–48 hours
Overview
BigChange and HubSpot serve fundamentally different roles in a business stack. BigChange is a field service management platform: it organizes work around jobs, scheduling, quotes, and invoicing against a customer record. HubSpot is a CRM that organizes data around contacts, companies, and revenue pipelines. The migration challenge is translating BigChange's job-centric model into HubSpot's contact-and-deal model without losing the operational history your team relies on. FlitStack AI migrates the data layer only — persons, organizations, jobs, quotes, financial document references, asset identifiers, alerts, and owner information. We map BigChange jobs to HubSpot Deals with custom fields for job-specific attributes like job_number, job_status, and location details. Quotes become deal-line custom fields or are stored as custom properties on the deal record. Associations between jobs and persons/companies map to HubSpot's native association model. Owner resolution happens by email match against HubSpot users. Workflows, automations, scheduling rules, and job-specific workflows do not migrate. They must be rebuilt in HubSpot using HubSpot workflows or the appropriate HubSpot Service Hub tier. FlitStack provides a field-level export of your BigChange workflow definitions as a rebuild reference for your implementation team.
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 BigChange 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.
BigChange
Person
HubSpot
Contact
1:1BigChange Persons map 1:1 to HubSpot Contacts. First name, last name, email, phone, mobile, job title, and address fields translate directly to their HubSpot equivalents. The Person's primary Organization link maps to the HubSpot Contact's Company association, preserving the organizational hierarchy and ensuring contacts are grouped correctly under their parent company in HubSpot.
BigChange
Organization
HubSpot
Company
1:1BigChange Organizations map to HubSpot Companies. Company name, domain/website, industry, number of employees, and annual revenue fields translate directly to HubSpot's corresponding fields. Organization hierarchies with parent/child relationships map to HubSpot's company association model, maintaining the structural relationships between different organizational units.
BigChange
Job
HubSpot
Deal
1:1BigChange Jobs map to HubSpot Deals because HubSpot has no native job object. Job-specific attributes — job_number, job_status, priority, description, location — migrate as custom properties on the Deal. The Job's linked Contact and Organization map to the Deal's associations.
BigChange
Quote
HubSpot
Deal custom properties + Line Items
many:1BigChange Quote header data including quote_number, quote_status, total_value, and currency maps to custom properties on the associated HubSpot Deal. Quote line items map to HubSpot Products/Line Items associated with the Deal, preserving quantity, unit, rate, and tax information for accurate financial tracking within the CRM.
BigChange
User (owner)
HubSpot
HubSpot User / Owner
1:1BigChange Users are resolved by email match against HubSpot Users. Matched users become the HubSpot Owner on migrated records, preserving assignment continuity throughout the migration process. Unmatched owners are flagged before migration; records route to a fallback owner or remain unassigned pending HubSpot account creation.
BigChange
Asset
HubSpot
Contact / Company custom properties
1:1HubSpot has no native Asset object. BigChange Asset records including asset_id, asset_name, asset_location, installation_date, make_model, and warranty information migrate as custom properties on the linked Contact or Company record. For Enterprise accounts, a custom Asset object can be created via the custom objects API for full asset relationship structure preservation.
BigChange
Financial Document
HubSpot
Deal custom properties
1:1BigChange Invoices and credit notes carry billing data with no HubSpot equivalent. Invoice number, total, tax amount, payment status, and document reference migrate as read-only custom properties on the associated Deal for reconciliation and audit purposes.
BigChange
Alert / Notification
HubSpot
HubSpot Timeline / Engagement
1:1BigChange Alerts and Notifications describe system-level events tied to jobs or persons. These migrate to HubSpot's engagement timeline as notes or activities, preserving the original alert text, timestamp, and related record association for a complete audit trail in the CRM.
BigChange
Schedule of Rates
HubSpot
Deal custom properties + Products
1:1BigChange Schedule of Rates defines pre-agreed pricing per job type. This pricing logic has no direct HubSpot equivalent. Rate codes and values migrate as custom fields on Deals or as Products, but the scheduling engine logic must be rebuilt in HubSpot workflows or Service Hub.
BigChange
Job → Person association
HubSpot
Deal → Contact association
1:1BigChange allows multiple Persons linked to a single Job (e.g., site contact, billing contact, field engineer). This maps to HubSpot's Deal-Contact association model. Additional roles beyond primary contact are captured via custom properties since HubSpot's standard Contact Role covers the basic case.
| BigChange | HubSpot | Compatibility | |
|---|---|---|---|
| Person | Contact1:1 | Fully supported | |
| Organization | Company1:1 | Fully supported | |
| Job | Deal1:1 | Fully supported | |
| Quote | Deal custom properties + Line Itemsmany:1 | Fully supported | |
| User (owner) | HubSpot User / Owner1:1 | Fully supported | |
| Asset | Contact / Company custom properties1:1 | Fully supported | |
| Financial Document | Deal custom properties1:1 | Fully supported | |
| Alert / Notification | HubSpot Timeline / Engagement1:1 | Fully supported | |
| Schedule of Rates | Deal custom properties + Products1:1 | Fully supported | |
| Job → Person association | Deal → Contact association1:1 | 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.
BigChange gotchas
DaaS data retention limits what historical data is available for export
Financial document exports require a separate migration pass
Custom quote fields and worksheet templates need manual field-level mapping
No documented public bulk REST API for direct record insertion
Evening performance degradation can interrupt migration window planning
HubSpot gotchas
Marketing Contacts billing model is migration-critical
Feature tier gating is not visible until onboarding
Mandatory onboarding fees inflate year-one cost
HubSpot CSV importer cannot migrate engagements or attachments
Custom objects require Enterprise and a pre-existing schema
Pair-specific challenges
Migration approach
Profile BigChange data and design HubSpot schema
FlitStack AI extracts a full data export from BigChange — persons, organizations, jobs, quotes, assets, and alerts — via the BigChange API. We profile the data to count record volumes, identify custom fields, and map multi-value pick-list options. Then we design the HubSpot schema: standard objects (Contact, Company, Deal) plus the custom properties needed for job_number, job_status, job_priority, scheduled dates, asset data, and quote reference fields. You receive a schema plan before any data moves.
Resolve owners and validate user accounts
BigChange Users are matched against HubSpot Users by email address. We generate a pre-migration owner resolution report listing every BigChange user, their email, and whether a matching HubSpot User exists. For any unmatched user, your team creates a HubSpot seat or designates a fallback owner. No record migrates without an owner assignment — this prevents orphaned Deals that cannot be assigned after the migration completes.
Migrate organizations first, then contacts, then deals
HubSpot's foreign-key model requires Accounts (Companies) to exist before Contacts can associate to them, and Contacts to exist before Deals can link to Contact associations. We sequence the migration: Organizations → Companies, then Persons → Contacts with company links, then Jobs → Deals with custom fields and contact associations. This dependency order prevents broken links and ensures every Deal has a resolvable primary contact.
Run sample migration with field-level diff
A representative slice — typically 100–300 records spanning contacts, companies, jobs, and quotes — migrates first into your live HubSpot environment. We generate a field-level diff report comparing source values against destination field values for every mapped property. You verify job_number mapping, job_status pick-list values, owner resolution, and quote_total preservation before the full run commits. Any mapping errors are corrected before the final migration runs.
Execute full migration with delta-pickup cutover
The full record set migrates to HubSpot following the validated mapping. A delta-pickup window — typically 24–48 hours — runs in parallel, capturing any records created or modified in BigChange during the cutover window. Audit logs record every operation. If reconciliation reveals unexpected gaps, one-click rollback reverts the migration. After sign-off, your team begins using HubSpot; BigChange remains accessible in read-only mode during the delta window before decommissioning.
Platform deep dives
BigChange
Source
Strengths
Weaknesses
HubSpot
Destination
Strengths
Weaknesses
Complexity grading
Standard CRM migration. 2 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 BigChange and HubSpot.
Object compatibility
2 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
BigChange: Not publicly documented.
Data volume sensitivity
BigChange 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 BigChange to HubSpot migration scoping. Not seeing yours? Book a call.
Walk through your BigChange to HubSpot migration with a real engineer — 30 minutes, free, written quote within 24 hours.
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