CRM migration
Field-level mapping, validation, and rollback between Membrain and HubSpot. We move data and schema; workflows are rebuilt natively in HubSpot.
Membrain
Source
HubSpot
Destination
Compatibility
14 of 14
objects map 1:1 between Membrain and HubSpot.
Complexity
BStandard
Timeline
48–72 hours
Overview
Membrain organizes B2B sales around Sales Projects (deal records), Prospects (pre-deal contacts), Companies, Contacts, Activities, and a set of product modules including Account Growth Projects and Tickets. HubSpot CRM uses a Contact–Company–Deal object graph with a unified pipeline model, lifecycle_stage as a contact property, and separate Tickets and Custom Objects. The migration carries Membrain's standard objects — Prospects, Companies, Contacts, Sales Projects, Activities, Tickets — into their HubSpot equivalents while surfacing what requires manual rebuild: Membrain's Account Growth Projects map to a HubSpot Custom Object, its process-step data becomes deal property notes, and its automations cannot migrate because HubSpot's Workflows engine is destination-side only. FlitStack accesses Membrain data via its API using an APIKey header, pages results in sets of up to 1,000 records per request, and sequences the migration so that Companies migrate before Contacts, and Deals attach to their parent Contacts via association labels.
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 Membrain 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.
Membrain
Prospect
HubSpot
Contact
1:1Membrain Prospects map to HubSpot Contacts directly. Pre-deal contacts that have not entered a Sales Project land in HubSpot as Contacts with lifecycle_stage set to 'lead'. Any email, phone, or company association present on the Prospect carries over as standard Contact properties.
Membrain
Company
HubSpot
Company
1:1Membrain Company records map 1:1 to HubSpot Companies without any transformation required. All standard fields — company name, domain, industry, employee count, and annual revenue — map to their HubSpot equivalents. Parent-company hierarchies defined in Membrain map to HubSpot's parent company association field, preserving organizational structures across the migration.
Membrain
Contact
HubSpot
Contact
1:1Membrain Contact records map directly to HubSpot Contacts. All standard properties — first name, last name, email, phone, job title, address — map to their HubSpot counterparts. Custom fields on Membrain Contacts migrate as HubSpot custom properties in snake_case naming.
Membrain
Sales Project
HubSpot
Deal
1:1Membrain Sales Projects are the primary deal-tracking object and map to HubSpot Deals. The Sales Project name becomes the Deal name, amount maps to deal amount, and close date maps to close date. The Membrain process step the project is in maps to the HubSpot dealstage pick-list value in the target pipeline.
Membrain
Sales Project Stage (process step)
HubSpot
Deal Stage (in Pipeline)
1:1Each Membrain Sales Project process step maps to a HubSpot deal stage. Stage names and order are mapped value-by-value. If Membrain has custom-named process steps (e.g., 'Discovery Complete', 'Proposal Sent'), those values are created as HubSpot deal stage labels in the target pipeline.
Membrain
Activity — Appointment
HubSpot
Meeting engagement
1:1Membrain Appointments migrate as HubSpot Meeting engagements. Original start and end timestamps, owner, and the parent record (Contact, Prospect, or Sales Project) are preserved. If Membrain has custom Activity Types beyond Appointment, those are mapped to the closest HubSpot engagement type.
Membrain
Activity — Task
HubSpot
Task
1:1Membrain Tasks map to HubSpot Tasks with all key data preserved during migration. Subject, body, due date, owner, and completion status transfer directly. Completed tasks receive a completion date in HubSpot; open tasks retain their original due date as a reference point for follow-up.
Membrain
Activity — Phone Call
HubSpot
Call engagement
1:1Membrain Phone Calls migrate as HubSpot Call engagements with original call duration, outcome (if recorded as a custom field), owner, and the associated Contact or Sales Project preserved. Call disposition data stored in Membrain custom fields becomes a HubSpot custom property.
Membrain
Activity — Email
HubSpot
Email engagement
1:1Membrain logged Emails map to HubSpot Email engagements with all metadata preserved. Sender, recipient, subject, body, and timestamp transfer and link to the parent Contact or Company record. Any file attachments included in emails are re-hosted in HubSpot's file storage during migration.
Membrain
Activity — Note
HubSpot
Engagement note
1:1Membrain Notes map to HubSpot engagement notes, preserving rich-text formatting where HubSpot supports it. Notes originally attached to a Sales Project link to the corresponding Deal in HubSpot via the deal association, maintaining context continuity across the migration.
Membrain
Account Growth Project
HubSpot
Custom Object (Account_Growth_Project__c)
1:1Membrain Account Growth Projects have no direct HubSpot equivalent. We create a HubSpot Custom Object named Account_Growth_Project__c, map the project name, target account (linked to Company), owner, status, and growth metrics as custom properties. This is a structural gap that requires HubSpot Enterprise-level access.
Membrain
Ticket
HubSpot
Ticket
1:1Membrain Tickets map to HubSpot Tickets. Subject, description, status, priority, owner, and pipeline assignment carry over. Membrain ticket custom fields migrate as HubSpot ticket properties. Note: Membrain's Flows module (process flows) does not have a HubSpot equivalent — those are not migrated.
Membrain
Custom Field (GUID-prefixed)
HubSpot
Custom Property (snake_case)
1:1Membrain custom fields use the CustomField{GUID} naming pattern — e.g., CustomField447dbe60-4925-4a75-b07b-13ad07d095d7. We extract the human-readable label from Membrain, create a corresponding HubSpot custom property using a snake_case version of that label, and map values field-by-field during migration.
Membrain
User / Owner
HubSpot
User (by email match)
1:1Membrain owner assignments on Sales Projects, Prospects, Activities, and Tickets resolve by matching the owner's email address to an existing HubSpot user. Any unmatched owners are flagged before the migration runs — your team either creates the HubSpot user first or assigns those records to a designated fallback owner to prevent orphaned records in HubSpot after migration.
| Membrain | HubSpot | Compatibility | |
|---|---|---|---|
| Prospect | Contact1:1 | Fully supported | |
| Company | Company1:1 | Fully supported | |
| Contact | Contact1:1 | Fully supported | |
| Sales Project | Deal1:1 | Fully supported | |
| Sales Project Stage (process step) | Deal Stage (in Pipeline)1:1 | Fully supported | |
| Activity — Appointment | Meeting engagement1:1 | Fully supported | |
| Activity — Task | Task1:1 | Fully supported | |
| Activity — Phone Call | Call engagement1:1 | Fully supported | |
| Activity — Email | Email engagement1:1 | Fully supported | |
| Activity — Note | Engagement note1:1 | Fully supported | |
| Account Growth Project | Custom Object (Account_Growth_Project__c)1:1 | Fully supported | |
| Ticket | Ticket1:1 | Fully supported | |
| Custom Field (GUID-prefixed) | Custom Property (snake_case)1:1 | Fully supported | |
| User / Owner | User (by email match)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.
Membrain gotchas
API access is a paid add-on with undocumented rate limits
Custom field GUID naming convention breaks standard field mappers
Lite accounts cannot own records or trigger automations
Modular product gating means not all features are available in every account
Sales Project stage definitions are per-pipeline and fully custom
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
Pull Membrain data via API with owner and custom field audit
FlitStack authenticates to Membrain using the APIKey header method described in Membrain's developer documentation. We paginate through all standard objects — Prospects, Companies, Contacts, Sales Projects, Activities, Tickets — in pages of up to 1,000 records per the Membrain API's default page size. Simultaneously, we pull the full custom field definitions from Membrain (name, GUID, type, options) so we can generate the snake_case property names before writing to HubSpot. This audit step also captures any inactive or archived custom fields so we do not carry dead schema into HubSpot.
Map custom fields and create HubSpot properties before data ingestion
For each Membrain custom field GUID, we read the human-readable label, generate a HubSpot snake_case property name, and create the property in HubSpot via the CRM Properties API before any records are written. This ensures no records land with unmapped custom field values. For Account Growth Projects, we create the Account_Growth_Project__c custom object during this phase and configure its association to Company. We also pre-create the HubSpot pipeline and stage values that correspond to each Membrain Sales Project pipeline and process step.
Resolve owners by email match and flag unresolved users
Membrain owner IDs on Sales Projects, Prospects, Activities, and Tickets resolve to HubSpot users by matching the owner's email address. Before migration runs, we generate an owner-resolution report listing every Membrain owner and their HubSpot match status. Any owner without a HubSpot user account is flagged — your team either creates the HubSpot user first or designates a fallback owner. No record migrates without a resolved HubSpot owner ID, preventing orphan records in the destination.
Run sample migration on a 100–500 record slice with field-level diff
A representative slice — spanning Prospects, Contacts, Companies, Sales Projects across multiple stages, and a sample of Activities — migrates first. We generate a field-level diff showing source values against destination values for every mapped field. You review the diff to confirm lifecycle_stage routing for Prospects, pipeline-to-stage mapping for Sales Projects, and owner resolution. No full run commits until you sign off on the sample diff. This is where changes to value mappings or custom field names are corrected before the large-scale run.
Execute full migration with delta-pickup window and audit log
The full migration runs against HubSpot's CRM API. A delta-pickup window — typically 24–48 hours from the start of the full run — captures any records created or modified in Membrain during the cutover so HubSpot reflects Membrain's final state at go-live. Every operation is captured in an audit log with source record ID, destination record ID, operation type, and timestamp. One-click rollback reverts all migration operations if reconciliation fails. After rollback, you can re-run from the delta-pickup checkpoint without re-migrating the full dataset.
Platform deep dives
Membrain
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 Membrain 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
Membrain: Not publicly documented — depends on instance type and API Add-on module.
Data volume sensitivity
Membrain 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 Membrain to HubSpot migration scoping. Not seeing yours? Book a call.
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