CRM migration
Field-level mapping, validation, and rollback between ResMan and Twenty CRM. We move data and schema; workflows are rebuilt natively in Twenty CRM.
ResMan
Source
Twenty CRM
Destination
Compatibility
10 of 10
objects map 1:1 between ResMan and Twenty CRM.
Complexity
BStandard
Timeline
48–72 hours
Overview
ResMan is a property management SaaS platform built around properties, units, tenants, leases, payments, and maintenance tickets. Twenty CRM is a modern open-source CRM with People, Companies, and Opportunities as its primary objects — it has no native concept of a unit, a lease term, or a work order. We bridge that gap by mapping ResMan tenants to Twenty People, ResMan properties to Twenty Companies (or custom Property objects for multi-unit portfolios), and ResMan leases to Twenty Opportunities with stage pick-list values matching your lease lifecycle. ResMan's accounting ledger, utility billing, and payment schedule data have no direct equivalent in Twenty — we preserve those as custom fields on the relevant Opportunity and People records and surface a rebuild reference document for your team. Our migration engine pulls from ResMan's REST API, transforms records into Twenty's CSV import format, creates any missing custom objects and fields in your Twenty workspace via the GraphQL API, and runs the import sequence: Companies first, then People (with companyId relations), then Opportunities, then custom objects with their own relations. Activity history — notes, tasks, and communications logged on tenants or leases — migrates as Notes and Tasks linked to the corresponding People or Opportunity records. Workflows, automations, integration connections, and the accounting ledger do not migrate and are documented in a rebuild-reference export that your team uses to reconfigure Twenty's workflow builder post-import.
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 ResMan object lands in Twenty CRM, including any object-level transformations, lookup resolution, or schema-design dependencies.
Typical mapping — final map is confirmed during the sample migration step.
ResMan
Property
Twenty CRM
Company + custom Property object (optional)
1:1ResMan Properties map to Twenty Companies because both represent organizations with a name, address, and industry. If the property portfolio has multi-unit buildings, we create a custom 'Property' object in Twenty keyed by the ResMan property ID and link Units to it. Property-level custom fields (InsurancePolicy, ZoningType, YearBuilt) migrate as custom fields on the Company or custom Property record.
ResMan
Unit
Twenty CRM
Custom 'Unit' object or custom fields on Company
1:1Twenty has no standard Unit or RentalObject entity. We create a custom 'Unit' object with fields: UnitNumber (text), FloorPlan, SquareFootage, Bedrooms, Bathrooms, MarketRent, Status (Vacant/Occupied). The Unit links back to the parent Property via a relation field. Units without a parent Property default to the Property record's address. This requires creating the custom object schema in Twenty Settings → Data Model before the import sequence runs.
ResMan
Tenant / Applicant
Twenty CRM
People
1:1ResMan Tenants and Applicants both map to Twenty People. Contact details (name, email, phone) migrate directly. Applicant-stage records (pre-lease) land in Twenty People with a custom ApplicantStatus__c pick-list field ('Screening', 'Approved', 'Denied'). Tenants who have signed a lease link to the corresponding Opportunity via the opportunityId relation that we populate during the Opportunity import step.
ResMan
Lease
Twenty CRM
Opportunity
1:1ResMan Leases map to Twenty Opportunities — this is the core of the migration. LeaseStage ('Pending', 'Active', 'Month-to-Month', 'Ended') maps to Twenty Opportunity StageName values (we configure the pick-list in Twenty's Data Model before import). MonthlyRent maps to Opportunity Amount. LeaseStartDate and LeaseEndDate map to CloseDate (use end date as the close date for pipeline reporting) and a custom LeaseStartDate__c field. LeaseID is stored as Source_System_Lease_ID__c for delta-run de-duplication.
ResMan
Lease Payment
Twenty CRM
Custom fields on Opportunity + Activity (Note)
1:1Twenty has no accounting ledger. Each lease's payment status (last paid date, balance due, late fees) migrates as custom fields on the Opportunity record: LastPaymentDate__c, BalanceDue__c, PaymentStatus__c. Payment history detail (each ACH transaction) is too granular for a CRM; we export it as a CSV rebuild reference and link a Note record with a summary table to the Opportunity for auditability.
ResMan
Work Order / Maintenance Ticket
Twenty CRM
Custom 'WorkOrder' object + Task
1:1ResMan maintenance tickets map to a custom 'WorkOrder' object with fields: Subject, Description, Priority (Low/Medium/High/Emergency), Status (Open/InProgress/Complete), Category, AssignedVendor, CreatedDate. Open work orders import as active records; closed ones import with Status='Complete' and CompletedDate__c. If the tenant contact exists in Twenty People, the WorkOrder links to it via a relation field. We do not migrate internal notes from the vendor communication thread — only the structured ticket fields and the final resolution note.
ResMan
Document / Lease Agreement File
Twenty CRM
Note with file attachment
1:1Twenty CSV import does not include file attachments. We export ResMan lease agreements, addenda, and tenant documents as a ZIP archive and generate a Note record per document with the original filename, document type, and a link to the archive. Re-upload of the actual files must be done manually in Twenty's Command Menu → Files, or via the GraphQL file upload endpoint. This is disclosed honestly — FlitStack does not promise automatic file migration.
ResMan
ResMan Owner / Property Manager
Twenty CRM
Workspace Member / People (with role)
1:1ResMan owner and property manager users resolve by email match against Twenty workspace members. We invite the matched users before the migration so OwnerId fields on WorkOrders and Opportunities populate correctly. Unmatched owners are flagged in the pre-flight report and can be invited before the final run. Owner records without a corresponding Twenty account default to a fallback 'Unassigned' placeholder.
ResMan
Applicant / Prospect Inquiry
Twenty CRM
People (with Opportunity if a tour was scheduled)
1:1Prospect inquiries in ResMan (often captured via the website lead form) map to Twenty People with a custom Source__c field = 'ResMan Inquiry'. If the prospect was associated with a specific unit and had a scheduled tour recorded in ResMan, we create an Opportunity linked to the unit and the prospect with StageName = 'Tour Scheduled' so your Twenty pipeline reflects the prospect pipeline from the start.
ResMan
Inspection Record
Twenty CRM
Custom 'Inspection' object or Note on the related Unit
1:1ResMan inspection records (move-in, move-out, annual) have no direct Twenty equivalent. We create a custom 'Inspection' object with fields: InspectionType, ScheduledDate, CompletedDate, OverallCondition, UnitId (relation), TenantId (relation), and findings as a rich-text Note field. The inspection date timeline is preserved for compliance reporting. If the inspection triggered a work order, we link the Inspection record to the related WorkOrder via a relation field.
| ResMan | Twenty CRM | Compatibility | |
|---|---|---|---|
| Property | Company + custom Property object (optional)1:1 | Fully supported | |
| Unit | Custom 'Unit' object or custom fields on Company1:1 | Fully supported | |
| Tenant / Applicant | People1:1 | Fully supported | |
| Lease | Opportunity1:1 | Fully supported | |
| Lease Payment | Custom fields on Opportunity + Activity (Note)1:1 | Fully supported | |
| Work Order / Maintenance Ticket | Custom 'WorkOrder' object + Task1:1 | Fully supported | |
| Document / Lease Agreement File | Note with file attachment1:1 | Fully supported | |
| ResMan Owner / Property Manager | Workspace Member / People (with role)1:1 | Fully supported | |
| Applicant / Prospect Inquiry | People (with Opportunity if a tour was scheduled)1:1 | Fully supported | |
| Inspection Record | Custom 'Inspection' object or Note on the related Unit1:1 | 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.
ResMan gotchas
Utility billing charges are calculated at move-out in real time
Section 8 subsidy data requires compliance-specific field mapping
Bulk text templates are not auto-saved from organic conversations
Custom report definitions are proprietary and not portable
Integration ecosystem creates data in third-party systems
Twenty CRM gotchas
Import order is enforced and critical
Export limited to 20,000 records and visible columns only
Soft-deleted records count toward uniqueness and trigger restores
API rate limits cap at 200 req/min on Organization tier
No native email sequences — follow-up cadences require external tools
Pair-specific challenges
Migration approach
Audit ResMan schema and Twenty workspace readiness
We connect to the ResMan API with read-only credentials and enumerate every active object: Properties, Units, Tenants, Leases, WorkOrders, Inspections, and any custom fields configured in ResMan's property management setup. We simultaneously audit the target Twenty workspace — confirming which custom objects and fields already exist and which must be created. We produce a pre-flight schema plan: a field-by-field diff showing which ResMan fields map to existing Twenty fields, which need new custom fields, and which require a custom object (e.g., Unit, WorkOrder). Your team reviews and approves the plan before we proceed.
Create Twenty custom objects and fields via GraphQL API
Before any records move, we create the custom Unit and WorkOrder objects and all missing custom fields in Twenty's Data Model using the GraphQL API. This includes setting pick-list values for StageName (mapped from ResMan LeaseStage), Priority__c, Status__c on WorkOrders, and all custom currency, date, and text fields. We configure these in a specific sequence: first the objects that other objects reference (Company), then the relation fields on dependent objects (Unit → Company, WorkOrder → People), then the scalar fields. If your Twenty workspace is on the Pro tier, we confirm API rate-limit headroom before writing the schema.
Export ResMan data and transform to Twenty CSV format
We pull the full dataset from ResMan's REST API: Properties, Units, Tenants, Leases, WorkOrders, Inspections, and any custom property fields. Each record is transformed into the Twenty CSV schema: People, Company, Opportunity, and custom object records with the correct column headers. Relations are resolved at this stage — ResMan TenantIDs are replaced with the Twenty People record IDs, PropertyIDs with Twenty Company IDs, and Unit.parentPropertyId with the parent Company's ID. The transformed CSVs are validated against the Twenty import template, with column-header mismatches flagged before upload.
Run a sample import on a test slice and generate field-level diff
A representative slice — typically 200–500 records spanning one property, its units, 10–20 tenants, 5–10 leases, and 3–5 work orders — is imported first. We generate a field-level diff: source field values from ResMan mapped against the resulting Twenty record values. You can verify that lease stages mapped correctly to Opportunity StageName, that Section 8 flags landed in the custom checkbox, and that Unit records link to the correct parent Company. We iterate on the transformation logic until the diff is clean before committing to the full run.
Full migration with delta-pickup and post-migration QA
The full dataset imports in the correct sequence: Companies first (the 'one' side of relations), then People with companyId links, then Opportunities with both peopleId and companyId, then custom Unit and WorkOrder records with their relations. During the cutover window, your team continues working in ResMan — we use scoped read access only. A delta-pickup (24–48 hours) captures any records created or modified after the initial export. After import, we run QA checks: record counts by object, null-rate on required fields, relation integrity (People → Company, WorkOrder → People), and duplicate detection on email and name. We deliver the document manifest ZIP for manual file re-upload and the payment-history CSV for accounting rebuild reference.
Platform deep dives
ResMan
Source
Strengths
Weaknesses
Twenty CRM
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 ResMan and Twenty CRM.
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
ResMan: Not publicly documented; partner tier restrictions apply.
Data volume sensitivity
ResMan exposes a bulk API — large-volume migrations stream efficiently.
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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