CRM migration
Field-level mapping, validation, and rollback between Summit Service Systems and Twenty CRM. We move data and schema; workflows are rebuilt natively in Twenty CRM.
Summit Service Systems
Source
Twenty CRM
Destination
Compatibility
11 of 12
objects map 1:1 between Summit Service Systems and Twenty CRM.
Complexity
BStandard
Timeline
48–72 hours
Overview
Summit Service Systems is a field-service and operations management platform built around work orders, service dispatching, billing, inventory tracking, and customer portals. Twenty CRM is an open-source CRM built on PostgreSQL with standard objects for People, Companies, Opportunities, Tasks, and Notes plus an unrestricted custom-object model. The two platforms share no common schema — Summit's work-order lifecycle, service-location hierarchy, and billing records do not map to any native Twenty object without custom configuration. FlitStack's migration engine reads from Summit's API, builds a custom-object translation layer for service-specific entities (contracts, reminders, inventory items), maps Customers to People, Companies to Companies, and Work Orders to Opportunities, then loads into Twenty via their bulk API with owner resolution by email match. Any dispatching rules, approval chains, or auto-routing logic in Summit must be rebuilt manually in Twenty's Workflow builder. We deliver a schema-setup plan, a field-level sample diff, and a 24–48 hour delta pickup window so your Twenty workspace reflects Summit's final state at cutover.
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 Summit Service Systems 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.
Summit Service Systems
Customer
Twenty CRM
People
1:1Summit Customer records map directly to Twenty People objects. Each Person record preserves the customer's contact details, service address, and primary technician assignment. The original Customer ID is stored in a custom Source_System_ID__c field on the People record for traceability, relationship mapping, and delta-run de-duplication against future sync runs.
Summit Service Systems
Company
Twenty CRM
Company
1:1Summit Company records map one-to-one to Twenty Companies without transformation. The primary service address from Summit maps to the Company address field in Twenty. For multi-location accounts where Summit stores multiple service addresses per company, a custom Locations object must be created in Twenty with a lookup relationship back to the parent Company, allowing each location to be tracked independently while remaining linked to its organization.
Summit Service Systems
Work Order
Twenty CRM
Opportunity
1:1Summit Work Order becomes Twenty Opportunity. Work order status (Scheduled, In Progress, Completed, Cancelled) maps to a custom Opportunity Stage field. Service address becomes the Opportunity address; technician name becomes the Opportunity owner resolved by email match against Twenty workspace members.
Summit Service Systems
Work Order Status
Twenty CRM
Custom Stage Field on Opportunity
1:1Summit work order status pick-list values map to a custom Stage__c field on Twenty Opportunities. Before migration, each Summit status option — such as Scheduled, Dispatched, On-Site, and Completed — is configured as a pick-list value in Twenty's data model under Settings. This ensures work orders migrate with their status correctly mapped to the matching option in Twenty without data loss or rejection due to invalid field values.
Summit Service Systems
Service Contract
Twenty CRM
Custom Object: ServiceContract
1:1Summit service contracts (with renewal dates, terms, and coverage scope) have no native Twenty equivalent. We create a ServiceContract custom object in Twenty with fields for contract term, renewal date, and coverage type. The custom object links to the related Company record via a lookup relationship.
Summit Service Systems
Service Reminder
Twenty CRM
Task
1:1Summit service reminders map to Twenty Tasks. The reminder date becomes the Task due date, the technician becomes the Task assignee, and the related Work Order link is preserved. Task status is set to Open on import and marked Complete once the related Opportunity stage reaches Completed.
Summit Service Systems
Inventory Item
Twenty CRM
Custom Object: InventoryItem
1:1Summit inventory items tracking parts and equipment do not map to Twenty's standard objects. We create an InventoryItem custom object with fields for part number, description, quantity on hand, and reorder level. The object links to related Work Orders through a lookup relationship.
Summit Service Systems
Address / Service Location
Twenty CRM
Address on Company or People
many:1Summit stores multiple service locations per customer. We map the primary service address to the Twenty Company address field. Secondary locations are stored in a custom Address2__c field or a separate custom Locations object if your team requires granular multi-site visibility in Twenty.
Summit Service Systems
Billing Record / Invoice
Twenty CRM
Custom Field on Opportunity
1:1Summit billing and invoice records have no native Twenty equivalent. We migrate invoice number, total amount, payment status, and billing date as read-only custom fields on the related Opportunity. The financial data is preserved for reference but Twenty does not generate invoices.
Summit Service Systems
Attachment / File
Twenty CRM
Note
1:1Summit file attachments on work orders — including photos, diagrams, and signed forms — are migrated as Twenty Notes attached to the corresponding Opportunity record. Each Note is linked to the work order's Opportunity in Twenty, preserving the attachment context. Standard Twenty file size limits apply to uploaded content, and inline images are rehosted as external links to avoid bloat in the Twenty workspace while maintaining accessibility.
Summit Service Systems
Technician / Staff
Twenty CRM
WorkspaceMember (Twenty User)
1:1Summit technicians and staff map to Twenty workspace members. Resolution happens by email match — each Summit technician with an email address is matched to a Twenty user by email. Technicians without email addresses are flagged before migration and assigned to a fallback Twenty user.
Summit Service Systems
Custom Field (any entity)
Twenty CRM
Custom Field
1:1Summit custom fields on any entity are created as custom fields in Twenty's data model under Settings → Data Model before migration runs. Field type is preserved (text, number, date, select) and validated against Twenty's supported field types. Custom fields must exist before records import.
| Summit Service Systems | Twenty CRM | Compatibility | |
|---|---|---|---|
| Customer | People1:1 | Fully supported | |
| Company | Company1:1 | Fully supported | |
| Work Order | Opportunity1:1 | Fully supported | |
| Work Order Status | Custom Stage Field on Opportunity1:1 | Fully supported | |
| Service Contract | Custom Object: ServiceContract1:1 | Fully supported | |
| Service Reminder | Task1:1 | Fully supported | |
| Inventory Item | Custom Object: InventoryItem1:1 | Fully supported | |
| Address / Service Location | Address on Company or Peoplemany:1 | Fully supported | |
| Billing Record / Invoice | Custom Field on Opportunity1:1 | Fully supported | |
| Attachment / File | Note1:1 | Fully supported | |
| Technician / Staff | WorkspaceMember (Twenty User)1:1 | Fully supported | |
| Custom Field (any entity) | Custom Field1:1 | 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.
Summit Service Systems gotchas
API export capabilities are not publicly well-documented
Invoice and payment data may require manual reconciliation post-migration
Approval workflow definitions do not export as automation rules
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 Summit's data model and map entity types
FlitStack begins every migration with a structured data audit. We enumerate every entity type in your Summit account — Customers, Companies, Work Orders, Service Contracts, Reminders, Inventory Items, Attachments, and custom fields — and document record counts per entity. We then produce a mapping specification that identifies which entities map to Twenty standard objects, which require custom objects, and which cannot be represented natively in Twenty and will be preserved as read-only reference data. This audit also surfaces data quality issues such as duplicate records, missing email addresses, and orphaned work orders before the migration runs.
Create Twenty custom objects and fields before import
Twenty requires all custom objects and custom fields to exist before records can reference them. Before any data moves, FlitStack delivers a schema setup plan specifying the exact custom object definitions (ServiceContract, InventoryItem, Locations), custom field names, types, and pick-list values needed for your migration. Your Twenty admin creates these in Settings → Data Model, or our team creates them via the Twenty API. We then validate that all field relationships resolve correctly before the import phase begins. Skipping this step causes Twenty to reject imported records that reference undefined custom fields.
Resolve technician and user assignments by email
Summit technicians and staff members must be matched to Twenty workspace members so that work orders and tasks land with the correct assignee. FlitStack resolves each Summit technician by email — if a matching Twenty user exists with the same email address, the assignment links automatically. If no match exists, the technician is flagged before migration and your team either invites them to Twenty first or designates a fallback owner. No Opportunity or Task imports without a resolved owner.
Run a sample migration with field-level diff
A representative slice of your Summit data — typically 200–500 records spanning People, Companies, Work Orders, Service Contracts, and Tasks — migrates first into your Twenty workspace. FlitStack generates a field-level diff report showing every mapped field, the source value, the destination value, and any transformation applied. Your team reviews the diff to verify work-order-to-opportunity stage mapping, contract relationship links, technician owner resolution, and custom field population. No full migration run commits until the sample diff is approved.
Execute full migration with delta-pickup cutover
After sample approval, the full migration runs against your Twenty workspace. A delta-pickup window of 24–48 hours captures any records created or modified in Summit during the cutover. FlitStack generates an audit log covering every record created, updated, or skipped, with reasons for any skipped records. One-click rollback is available if reconciliation fails. Your team continues working in Summit throughout the migration window — FlitStack uses scoped read access on Summit and does not interrupt active operations.
Platform deep dives
Summit Service Systems
Source
Strengths
Weaknesses
Twenty CRM
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 Summit Service Systems and Twenty CRM.
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
Summit Service Systems: Not publicly documented.
Data volume sensitivity
Summit Service Systems 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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