CRM migration
Field-level mapping, validation, and rollback between Sierra Interactive and HubSpot. We move data and schema; workflows are rebuilt natively in HubSpot.
Sierra Interactive
Source
HubSpot
Destination
Compatibility
12 of 12
objects map 1:1 between Sierra Interactive and HubSpot.
Complexity
BStandard
Timeline
48–72 hours
Overview
Sierra Interactive organizes its CRM around leads, companies, and a deal-centric pipeline model tailored for real estate teams. It exposes an API for lead management, tasks, notes, saved listings, and webhooks. HubSpot's CRM uses contacts, companies, deals, and tickets with a properties system that supports both standard and custom fields, multiple deal pipelines, and lifecycle stages that track a contact's progression from subscriber through customer. FlitStack AI extracts Sierra data via its REST API — pulling leads, companies, deals, tasks, notes, saved listings, lead source tags, and action-plan activity records. We map Sierra's lead record to HubSpot contacts, Sierra companies to HubSpot companies, and Sierra deals to HubSpot deals with pipeline and stage mapping. Saved listings (properties a lead has bookmarked) have no native HubSpot equivalent and are preserved as a custom multi-line-text property or as contact notes with a standardized prefix so managers can filter on them in HubSpot. Lead ponds (virtual buckets for lead segmentation) map to HubSpot contact lists or a custom pick-list property. Action-plan sequences (automated email, text, and voicemail follow-ups) do not migrate — HubSpot workflows are a destination-side construct that must be rebuilt using HubSpot's workflow engine. Owner resolution matches Sierra user email addresses to HubSpot user emails before records land. A 24–48 hour delta-pickup window captures any records modified during the cutover window.
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 Sierra Interactive 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.
Sierra Interactive
Lead
HubSpot
Contact
1:1Sierra's Lead object maps directly to HubSpot Contact. All standard lead fields (name, email, phone, address, lead source) transfer as HubSpot contact properties. The lead's original create date is preserved in a custom datetime property since HubSpot's standard Createdate is set at import time.
Sierra Interactive
Lead.lead_status
HubSpot
Contact.lifecycle_stage
1:1Sierra lead status values (New, Contacted, Qualified, etc.) map to HubSpot lifecycle stage values. A value-by-value mapping table is created during discovery. If Sierra uses statuses that don't map cleanly to HubSpot's predefined lifecycle stages, they migrate as a custom pick-list property on the contact.
Sierra Interactive
Company
HubSpot
Company
1:1Sierra Company records transfer as HubSpot Company records. Company name, domain/website, industry, and employee count map directly. Additional fields such as phone, address, city, state, and postal code also transfer. HubSpot's association model links companies to contacts; a contact without a primary company in Sierra lands as an unassociated HubSpot contact, and your team can link it to a company record manually after migration if needed.
Sierra Interactive
Deal
HubSpot
Deal
1:1Sierra deals map to HubSpot deals with pipeline and stage mapping. Each Sierra deal pipeline maps to a HubSpot deal pipeline. Stage names map value-by-value to HubSpot deal stage pick-lists. Deal amount, close date, and owner transfer directly. The deal's original create timestamp is preserved in a custom datetime property.
Sierra Interactive
Task
HubSpot
Task
1:1Sierra tasks (calls, follow-ups, phone tasks) transfer as HubSpot tasks. Task subject, due date, completion status, and owner are preserved directly. Completed tasks carry their original completion timestamp. Task type (call, email, SMS) maps to HubSpot's hs_task_type property. Associated notes or comments are preserved in the HubSpot task's notes field.
Sierra Interactive
Note
HubSpot
Engagement / Note
1:1Sierra notes on leads or deals transfer as HubSpot engagement notes. Original note text, author, and create timestamp are preserved. Notes associated with a lead land on the corresponding HubSpot contact. Notes tied to deals attach to the HubSpot deal record.
Sierra Interactive
Saved Listing
HubSpot
Custom Property on Contact
1:1Sierra's saved listings (listing IDs and property addresses a lead has bookmarked) have no native HubSpot equivalent. We create a custom multi-line-text or list-type property on the contact record to store saved listing data in a pipe-delimited or JSON-formatted string. Managers can use HubSpot's list filtering or a custom report to surface leads with saved listings.
Sierra Interactive
Lead Pond
HubSpot
Contact List or Custom Pick-list Property
1:1Sierra Lead Ponds (virtual segmentation buckets) map to a custom pick-list property on the contact record. If the team uses Lead Ponds as dynamic routing groups, we also create static HubSpot contact lists that match the pond membership and update them via workflow after migration. Your admin chooses the approach during discovery.
Sierra Interactive
Action Plan Activity
HubSpot
Task + Engagement History
1:1Sierra Action Plans (automated email, SMS, voicemail, and task sequences) do not migrate as active automations. Individual action-plan events (emails sent, texts delivered, voicemails dropped, tasks created) transfer as HubSpot tasks and engagement history records so the contact's timeline reflects the sequence of outreach that occurred.
Sierra Interactive
Lead Tag / Lead Source Tag
HubSpot
Custom Text Property on Contact
1:1Sierra's lead source tags and tagging taxonomy map to a custom text or multi-checkbox property in HubSpot. Tags with consistent naming across the source system are consolidated into HubSpot's built-in contact property system where possible to leverage HubSpot's native filtering.
Sierra Interactive
User / Owner
HubSpot
HubSpot User
1:1Sierra user records are resolved by email address against HubSpot user accounts. Unmatched owners are flagged before migration; your team either creates HubSpot users for them or assigns their records to a fallback HubSpot user. No record lands without a valid HubSpot owner.
Sierra Interactive
Saved Search
HubSpot
HubSpot List (static)
1:1Sierra saved searches (saved IDX search criteria per lead) have no HubSpot equivalent. We preserve the saved search URL or criteria string as a custom text property on the contact record for reference. Dynamic list behavior based on saved searches requires a HubSpot workflow to be designed and built post-migration.
| Sierra Interactive | HubSpot | Compatibility | |
|---|---|---|---|
| Lead | Contact1:1 | Fully supported | |
| Lead.lead_status | Contact.lifecycle_stage1:1 | Fully supported | |
| Company | Company1:1 | Fully supported | |
| Deal | Deal1:1 | Fully supported | |
| Task | Task1:1 | Fully supported | |
| Note | Engagement / Note1:1 | Fully supported | |
| Saved Listing | Custom Property on Contact1:1 | Fully supported | |
| Lead Pond | Contact List or Custom Pick-list Property1:1 | Fully supported | |
| Action Plan Activity | Task + Engagement History1:1 | Fully supported | |
| Lead Tag / Lead Source Tag | Custom Text Property on Contact1:1 | Fully supported | |
| User / Owner | HubSpot User1:1 | Fully supported | |
| Saved Search | HubSpot List (static)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.
Sierra Interactive gotchas
Sierra API lacks public bulk export endpoint
Action Plans are not transferable as structured automation
Setup fee and pricing opacity create budget surprises
Lead Ponds have no equivalent in standard CRM schema
Website ownership stays with Sierra — DNS and SEO implications
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 Sierra data model and HubSpot destination schema
FlitStack reads your Sierra Interactive account via API — pulling all leads, companies, deals, tasks, notes, saved listings, lead ponds, and action-plan activity. We simultaneously audit your target HubSpot portal for existing properties, pipelines, and user accounts. The discovery output is a data inventory showing record counts per object, custom field counts, and any schema conflicts (duplicate property names, pick-list mismatches) that need resolution before import begins.
Create HubSpot custom properties and pipelines
Before any records move, FlitStack creates the custom properties needed in HubSpot: original_create_date__c, source_system_lead_id__c, saved_listings__c, lead_pond__c, and sierra_tags__c. We also create HubSpot deal pipelines to match Sierra's pipeline configuration, mapping each Sierra pipeline to a named HubSpot pipeline with matching stage values. This step requires a HubSpot admin to grant FlitStack the property creation permissions via a connected app token.
Resolve owners by email match against HubSpot users
Sierra user email addresses are matched against HubSpot user accounts. Any owner with no corresponding HubSpot user is flagged in the pre-migration report. Your team either creates HubSpot users for those owners before the migration or designates a fallback HubSpot user to own their records. No record lands in HubSpot without a valid owner assignment. This step eliminates orphaned records and ensures your HubSpot pipeline views reflect the correct team assignments from day one.
Run sample migration with field-level diff
A representative slice of records — typically 100–500 spanning contacts, companies, deals, tasks, and leads with saved listings — migrates first. FlitStack generates a field-level diff report comparing the source Sierra values against the destination HubSpot values for each mapped property. You review the diff to verify saved listing preservation, lead pond mapping, lifecycle stage assignment, and owner resolution before the full migration run is approved. This step catches mapping errors before they affect your entire dataset.
Execute full migration with delta-pickup window
The full migration runs against HubSpot's bulk import and CRM APIs, respecting rate limits on both platforms. A delta-pickup window of 24–48 hours runs after the initial import completes, capturing any records created or modified in Sierra Interactive during the cutover window. FlitStack generates an audit log of every record written, the mapping applied, and any records that failed validation. One-click rollback reverts the HubSpot portal to its pre-migration state if reconciliation identifies unexpected data divergence.
Platform deep dives
Sierra Interactive
Source
Strengths
Weaknesses
HubSpot
Destination
Strengths
Weaknesses
Complexity grading
Standard CRM migration. 1 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 Sierra Interactive and HubSpot.
Object compatibility
1 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
Sierra Interactive: Not publicly documented.
Data volume sensitivity
Sierra Interactive 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
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