CRM migration
Field-level mapping, validation, and rollback between LeadSimple and HubSpot. We move data and schema; workflows are rebuilt natively in HubSpot.
LeadSimple
Source
HubSpot
Destination
Compatibility
12 of 12
objects map 1:1 between LeadSimple and HubSpot.
Complexity
CModerate
Timeline
48–72 hours
Overview
LeadSimple is built around property management workflows — leads tied to properties, lease-management pipelines, and property-specific custom fields. HubSpot organizes data around contacts, companies, and deals with a general-purpose CRM model that supports marketing automation, sales pipelines, and service tickets. The migration carries LeadSimple's leads, contacts, property associations, pipeline stages, tasks, and custom fields into HubSpot's equivalent objects. The harder problems are mapping LeadSimple's property-centric data model to HubSpot's contact-and-company graph, preserving pipeline stage history in HubSpot's deal lifecycle, and handling LeadSimple's process-based automation logic that has no HubSpot equivalent. FlitStack AI uses LeadSimple's export API and CSV extraction to read all standard and custom fields, then maps them field-by-field into HubSpot via the Contacts API, Companies API, Deals API, and Custom Objects API. A sample migration with field-level diff runs first; the full migration follows with a 24-48 hour delta-pickup window. Workflows, sequences, and process automation must be rebuilt in HubSpot — we export the logic as a reference document for your admin.
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 LeadSimple 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.
LeadSimple
Lead (LeadSimple)
HubSpot
Contact (HubSpot)
1:1LeadSimple leads map to HubSpot contacts. The contact's name, email, phone, and address fields transfer directly. LeadSimple's 'Lead Name' field splits into HubSpot firstname and lastname properties. Original LeadSimple create date is preserved as a custom datetime field since HubSpot's Createdate is set at migration time.
LeadSimple
Property (LeadSimple)
HubSpot
Custom Object: Property (HubSpot)
1:1LeadSimple properties have no direct HubSpot equivalent — they become a HubSpot custom object named 'Property'. Property address, type, occupancy status, and number of units become custom properties on the Property custom object. Each LeadSimple property record creates one Property custom object record linked to its associated contact.
LeadSimple
Unit (LeadSimple)
HubSpot
Custom Object: Unit (HubSpot)
1:1LeadSimple units belong to properties and track occupancy, rent amount, and lease dates. Units map to a HubSpot custom object linked to the Property custom object via a custom association. Unit-level rent and lease-end dates become custom properties on the Unit custom object for reporting against deal pipelines.
LeadSimple
Pipeline (LeadSimple)
HubSpot
Deal Pipeline (HubSpot)
1:1LeadSimple pipelines model property lifecycle stages — Inquiry, Showing, Application, Lease, Renewal. Each LeadSimple pipeline becomes a HubSpot deal pipeline. Stage names map value-by-value to HubSpot deal stages within each pipeline. Stage-entry timestamps are preserved as custom datetime fields on the deal record.
LeadSimple
Stage Status (LeadSimple)
HubSpot
Deal Stage (HubSpot)
1:1Stage status values (Active, Won, Lost, On Hold) map to HubSpot deal stages. LeadSimple's 'Closed At' timestamp maps to HubSpot's closedate. For deals where LeadSimple has no close date, HubSpot's close date defaults to the migration date — flagged for admin review.
LeadSimple
Process (LeadSimple)
HubSpot
Custom Object: Process (HubSpot)
1:1LeadSimple processes track property-management workflows like lease renewals and make-ready tasks. Processes map to a HubSpot custom object since HubSpot has no native process-tracking equivalent. Process stage, assigned user, and due date become custom properties. Process-task associations require a junction object in HubSpot.
LeadSimple
Contact Custom Fields (LeadSimple)
HubSpot
Contact Custom Properties (HubSpot)
1:1LeadSimple contact custom fields store owner preferences, referral sources, and property-specific notes. Each LeadSimple contact custom field becomes a HubSpot contact custom property with the same field type (text, number, date, picklist). Picklist values are mapped value-by-value; multi-select picklists become HubSpot multi-checkbox properties.
LeadSimple
Tag List (LeadSimple)
HubSpot
Contact Properties: Tag (HubSpot)
1:1LeadSimple's tag list on leads stores segmentation labels. Tags migrate to HubSpot as contact properties — single-value tags map to a HubSpot single-line text property; multi-value tags use HubSpot's multi-checkbox or a comma-separated text property. Tags are not HubSpot-native associations but are preserved for list-building in HubSpot.
LeadSimple
Owner / Assigned To (LeadSimple)
HubSpot
Contact Owner / Deal Owner (HubSpot)
1:1LeadSimple owner IDs resolve to HubSpot users by email match. Unmatched owners are flagged before migration — teams either create HubSpot user accounts or assign records to a fallback owner. Owner resolution applies to contacts, properties, units, and deal records simultaneously.
LeadSimple
Annual Contract Value (LeadSimple)
HubSpot
Deal: Amount (HubSpot)
1:1LeadSimple's Annual Contract Value on leads maps to HubSpot deal amount. For leads that have not yet converted to a deal, the value is stored as a contact custom property (Annual_Contract_Value__c) until a deal is created in HubSpot's pipeline. The amount transfers as a numeric field; if empty, zero is used. This property also supports reporting on leads awaiting deal creation.
LeadSimple
Source Name / Referrer Name (LeadSimple)
HubSpot
Contact: hs_analytics_source_data / utm_campaign (HubSpot)
1:1LeadSimple tracks lead source and referrer. Source Name maps to HubSpot's hs_analytics_source_data property on contacts. Referrer Name becomes a custom contact property (Referrer_Name__c) for segmentation. These are preserved for HubSpot reporting and list building. The source attribution is retained to maintain campaign performance visibility, while the referrer field supports lead source analysis and audience segmentation across HubSpot's tools.
LeadSimple
Activity: Calls, Emails, Texts (LeadSimple)
HubSpot
Engagement: Calls, Emails, Notes (HubSpot)
1:1LeadSimple engagement history (calls, emails, texts, notes) associates with leads. These map to HubSpot engagements — calls become HubSpot call records, emails become logged emails, and texts become HubSpot calls with a custom 'SMS' type property. Original timestamps and owners are preserved.
| LeadSimple | HubSpot | Compatibility | |
|---|---|---|---|
| Lead (LeadSimple) | Contact (HubSpot)1:1 | Fully supported | |
| Property (LeadSimple) | Custom Object: Property (HubSpot)1:1 | Fully supported | |
| Unit (LeadSimple) | Custom Object: Unit (HubSpot)1:1 | Fully supported | |
| Pipeline (LeadSimple) | Deal Pipeline (HubSpot)1:1 | Fully supported | |
| Stage Status (LeadSimple) | Deal Stage (HubSpot)1:1 | Fully supported | |
| Process (LeadSimple) | Custom Object: Process (HubSpot)1:1 | Fully supported | |
| Contact Custom Fields (LeadSimple) | Contact Custom Properties (HubSpot)1:1 | Fully supported | |
| Tag List (LeadSimple) | Contact Properties: Tag (HubSpot)1:1 | Fully supported | |
| Owner / Assigned To (LeadSimple) | Contact Owner / Deal Owner (HubSpot)1:1 | Fully supported | |
| Annual Contract Value (LeadSimple) | Deal: Amount (HubSpot)1:1 | Fully supported | |
| Source Name / Referrer Name (LeadSimple) | Contact: hs_analytics_source_data / utm_campaign (HubSpot)1:1 | Fully supported | |
| Activity: Calls, Emails, Texts (LeadSimple) | Engagement: Calls, Emails, Notes (HubSpot)1:1 | 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.
LeadSimple gotchas
Notes and Activities excluded from bulk CSV export
No public API — migration requires workaround
Contact-level custom fields can vary per owner on the same property
Per-door pricing on Operations layer is a billing artifact not migratable
Workflow automation must be manually rebuilt on the destination
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
Audit LeadSimple data export and assess property/unit record counts
FlitStack AI pulls a full export from LeadSimple using the platform's CSV export for leads, plus API access for properties, units, and process records. We count all records by type, identify custom field definitions on contacts, properties, units, and processes, and flag any records with missing required fields. This audit produces the record-count breakdown that drives migration scope and pricing. Teams with large property portfolios should also identify which properties are active (occupied, under management) versus archived — archived records can be archived in HubSpot rather than imported as active custom object records.
Create HubSpot custom objects for Property, Unit, and Process
Before any data moves, FlitStack AI creates the HubSpot custom objects that have no native equivalent — Property, Unit, and Process — with all required custom properties mapped from the LeadSimple schema. Property and Unit custom objects are associated via a custom relationship property. Process custom object is created with stage, due date, and assigned owner properties. HubSpot admin credentials are used to create these objects in the target portal. We deliver a setup checklist so your admin can verify the custom object schema before validation begins.
Resolve owners by email match and validate contact-company associations
LeadSimple owner IDs are matched to HubSpot users by email address. Unmatched owners are flagged in a pre-migration report — your team either creates HubSpot user accounts for them or assigns their records to a designated fallback owner before migration runs. LeadSimple leads without a primary property association map to HubSpot contacts without a company link; contacts with multiple property associations are linked to a primary property record and the additional associations are noted in a custom property for reconciliation.
Run sample migration with field-level diff across 100–500 records
A representative sample migrates first — covering contacts from different pipeline stages, properties with varying occupancy, units with different lease terms, and a few process records. FlitStack AI generates a field-level diff showing source value versus destination value for every mapped field. You verify that LeadSimple tags appear correctly in HubSpot's tags__c custom property, that property associations link to the correct Unit and Property custom objects, and that owner resolution produced the expected HubSpot owner on each record. No full run commits until you sign off on the sample.
Execute full migration with delta-pickup window and audit log
Full migration runs against HubSpot's API, processing contacts, properties, units, process records, and engagement history. A 24–48 hour delta-pickup window captures any records created or modified in LeadSimple during the cutover period. Every operation is logged in an audit report — record count by object, field mapping applied, owner resolution outcome, and any records that failed with error codes. One-click rollback reverts all migrated records if reconciliation reveals unexpected data loss. After rollback window closes, the audit log is delivered as a migration certificate.
Platform deep dives
LeadSimple
Source
Strengths
Weaknesses
HubSpot
Destination
Strengths
Weaknesses
Complexity grading
Moderate CRM migration. 1 of 8 objects need a manual workaround.
Overall complexity
Moderate migration
Derived from compatibility, mapping clarity, API constraints, and data volume across LeadSimple and HubSpot.
Object compatibility
1 of 8 objects need a manual workaround.
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
LeadSimple: Not publicly documented.
Data volume sensitivity
LeadSimple 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 LeadSimple to HubSpot migration scoping. Not seeing yours? Book a call.
Walk through your LeadSimple to HubSpot migration with a real engineer — 30 minutes, free, written quote within 24 hours.
Book a free 30 minute consultationAdjacent paths
Other ways to leave LeadSimple
Other ways to arrive at HubSpot
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.