CRM migration
Field-level mapping, validation, and rollback between Core Practice and Twenty CRM. We move data and schema; workflows are rebuilt natively in Twenty CRM.
Core Practice
Source
Twenty CRM
Destination
Compatibility
13 of 13
objects map 1:1 between Core Practice and Twenty CRM.
Complexity
BStandard
Timeline
48–72 hours
Overview
Core Practice organizes dental practice data around Practices, Patients, Appointments, Treatment Plans, and Invoices. Each object carries patient-facing clinical and administrative data but no native CRM concept of Leads, Opportunities, or Sales Pipelines. Twenty CRM stores People, Companies, Opportunities, Notes, Tasks, and supports custom objects. The migration translates Core Practice's patient records into Twenty People, Core Practice's practice entities into Twenty Companies, appointment timestamps into Twenty Tasks, and treatment-plan data into Twenty custom objects. Workflows, automations, and billing logic in Core Practice have no native equivalent in Twenty — those must be rebuilt as Twenty Workflows or exported as reference documents for your admin. We read Core Practice's export API or CSV output, normalize the schema, and push into Twenty via its REST or GraphQL API using the correct import order: Companies first, then People (with companyId lookups), then Opportunities, then custom objects with their relations last. During import, FlitStack AI runs validation checks to confirm field mappings and record counts match the source. After the initial load, a delta‑pickup window captures any new or updated Core Practice records, ensuring the Twenty instance stays current until the cutover moment.
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 Core Practice 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.
Core Practice
Patient
Twenty CRM
People
1:1Core Practice Patient records migrate as Twenty People. The email address (if present) becomes the unique identifier for People import. Patients without emails are imported with a generated placeholder and flagged for review. Name, phone, address, and DOB map directly; Core Practice patient_id stored as source_patient_id__c for traceability.
Core Practice
Patient.first_address + patient_city + patient_state + patient_postal_code
Twenty CRM
People
1:1Core Practice stores address components as separate fields. These combine into a structured address block in Twenty People. We validate state abbreviations and postal code formats before import to prevent malformed address records in Twenty. For international addresses, we also normalize country names and apply the appropriate Two‑letter ISO code, ensuring consistency across all address records in Twenty.
Core Practice
Practice
Twenty CRM
Company
1:1Core Practice Practice entity (clinic name, address, phone) migrates as a Twenty Company record. For multi-location dental groups, each Core Practice location becomes a separate Company record. If the group name is needed as a parent, we use Twenty's parent_company_id field to build the hierarchy.
Core Practice
Appointment
Twenty CRM
Task
1:1Core Practice Appointments with status Scheduled, Completed, Cancelled, or No-Show become Twenty Tasks. The appointment datetime maps to dueDate and dueStatus on the Task. The associated patient and doctor link via their Twenty record IDs. We also capture appointment_type and procedure codes as custom fields on the Task for audit continuity.
Core Practice
Doctor / Provider
Twenty CRM
People
1:1Core Practice Doctor records (name, specialization, email) migrate as People records in Twenty with a custom Doctor_Specialization__c field. Doctor email resolves against Twenty Workspace Members — if a match is found, the doctor gets a Twenty user account and ownership of their associated appointment Tasks.
Core Practice
TreatmentPlan
Twenty CRM
Custom Object
1:1Core Practice Treatment Plans (procedures, estimated cost, status: Proposed, In-Progress, Completed) have no direct equivalent in Twenty's standard objects. We create a TreatmentPlan custom object in Twenty with fields for procedure_name, treatment_status, estimated_cost, and associated Patient via a relation field. This is the most common schema extension for dental-to-Twenty migrations.
Core Practice
Invoice
Twenty CRM
Custom Object or Note
1:1Core Practice Invoices carry line items, totals, and payment status (Paid, Outstanding, Overdue) with no native equivalent in Twenty. We migrate Invoice records as a custom Invoice object in Twenty for reference — actual payment processing must remain in Core Practice or move to a dedicated billing tool post-migration.
Core Practice
Insurance Claim
Twenty CRM
Custom Object
1:1Core Practice Insurance Claim records (claim_id, status, amount, patient) migrate as a custom InsuranceClaim object in Twenty. This captures the financial context of each patient relationship without requiring a billing module in Twenty. The custom InsuranceClaim object stores claim_date, provider_name, service_code, and payer as custom fields, and maps Core Practice claim status to a pick‑list (Submitted, Pending, Approved, Denied, Paid).
Core Practice
Note / Clinical Note
Twenty CRM
Note
1:1Core Practice clinical notes and free-text observations migrate as Twenty Notes attached to the corresponding Patient record. Original note timestamps and doctor attribution are preserved as custom fields on the Note object in Twenty. We preserve the full note body as plain text, set the note's visibility to the assigned doctor and relevant staff, and include a reference to the original Core Practice note ID for audit traceability.
Core Practice
Document / Attachment (X-rays, forms)
Twenty CRM
Twenty Files / Attachment
1:1File attachments stored in Core Practice (X-ray images, signed forms, treatment PDFs) are downloaded and re-uploaded to Twenty's file storage. File associations to Patient records are preserved. Maximum file size limits from Twenty's storage backend apply — large imaging files may require compression or separate cloud storage with a link stored in Twenty.
Core Practice
Patient relationship to Practice
Twenty CRM
People.companyId relation
1:1Core Practice patients belong to a Practice entity. After the Practice migrates to a Twenty Company, we link each Patient to that Company via the companyId field on the People record. Multi-location patients (seen across practices) require the patient's primary practice to be designated for the companyId lookup.
Core Practice
Workflow / Recall Automation
Twenty CRM
No equivalent
1:1Core Practice workflows (appointment reminders, patient recall sequences, insurance expiration alerts) do not migrate. These automations must be rebuilt in Twenty's Workflow builder. We export workflow definitions as JSON reference files so your admin can recreate the logic step-by-step in Twenty.
Core Practice
Billing / Payment Records
Twenty CRM
No native equivalent
1:1Core Practice invoice and payment tracking is a billing construct with no Twenty CRM equivalent. We preserve invoice number, status, and outstanding balance as custom fields on a reference Invoice custom object in Twenty, but actual payment processing, line-item billing, and insurance claim adjudication must continue in a dedicated billing tool.
| Core Practice | Twenty CRM | Compatibility | |
|---|---|---|---|
| Patient | People1:1 | Fully supported | |
| Patient.first_address + patient_city + patient_state + patient_postal_code | People1:1 | Fully supported | |
| Practice | Company1:1 | Fully supported | |
| Appointment | Task1:1 | Fully supported | |
| Doctor / Provider | People1:1 | Fully supported | |
| TreatmentPlan | Custom Object1:1 | Fully supported | |
| Invoice | Custom Object or Note1:1 | Fully supported | |
| Insurance Claim | Custom Object1:1 | Fully supported | |
| Note / Clinical Note | Note1:1 | Fully supported | |
| Document / Attachment (X-rays, forms) | Twenty Files / Attachment1:1 | Fully supported | |
| Patient relationship to Practice | People.companyId relation1:1 | Fully supported | |
| Workflow / Recall Automation | No equivalent1:1 | Fully supported | |
| Billing / Payment Records | No native equivalent1:1 | 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.
Core Practice gotchas
No publicly documented public API for direct data extraction
Proprietary patient archiving logic can silently drop records
Appointment booking reliability is a documented weakness
Limited review volume limits migration confidence
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 Core Practice schema and export structure
FlitStack AI reads Core Practice's export API output or generated CSV files to enumerate every object, field, and relationship currently in use. We identify which custom fields are actively populated (not just defined), flag duplicate-prone fields, and document which workflows and automations are active. This audit produces the field-mapping spreadsheet and the automation reference document that drives every subsequent step.
Build Twenty custom objects and fields before data lands
Before any data moves, we create the TreatmentPlan and Invoice custom objects in Twenty, add all custom fields identified in the audit, and configure pick-list values for appointment_status, treatment_status, and invoice_status. Twenty's Settings → Data Model requires fields to exist before the CSV import creates records — this step is sequenced first so the schema is ready when the import runs.
Export and sequence Core Practice records for import order compliance
Twenty requires a strict import sequence: Companies first (to establish parent records), then People (with companyId lookups resolved), then Opportunities, then custom objects with relations last. We extract Core Practice data in the correct order, validate record counts at each stage, and flag any orphaned patient records (patients without a practice_id) for manual resolution before the People import runs. We also check for duplicate records, enforce data type constraints, and log each batch to a migration audit table. Any discrepancies trigger a pause and require admin sign‑off before proceeding to the next stage.
Resolve doctor records by email against Twenty Workspace Members
Core Practice Doctor records are matched to Twenty users by email address. If a doctor email matches a Twenty Workspace Member, their Twenty user account receives ownership of associated appointment Tasks. Unmatched doctor emails are flagged and assigned to a fallback owner. This step ensures accountability for appointment history is preserved in Twenty's permission model. All matches and fallbacks are recorded in the migration audit log for future reference and compliance review.
Run a test migration with field-level diff on a representative slice
A sample of 100–500 records — covering a mix of patients, appointments, treatment plans, and invoices — migrates first. We generate a field-level diff between the source Core Practice export and the resulting Twenty records so you can verify that appointment timestamps, treatment-plan statuses, and patient addresses arrived correctly. Custom field creation and value mapping are validated at this stage before the full run commits.
Execute full migration with delta-pickup window and rollback capability
The full migration runs against Twenty's API or CSV import endpoints. A delta-pickup window (typically 24–48 hours after cutover) captures any Core Practice records modified during the migration run — new appointments, updated patient records, or newly created treatment plans. FlitStack AI maintains an audit log of every record created and modified. One-click rollback is available if reconciliation against the Core Practice source reveals unexpected gaps.
Platform deep dives
Core Practice
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 Core Practice 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
Core Practice: Not publicly documented.
Data volume sensitivity
Core Practice 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 Core Practice to Twenty CRM migration scoping. Not seeing yours? Book a call.
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