CRM migration

Migrate from Contractor+ to Nutshell

Field-level mapping, validation, and rollback between Contractor+ and Nutshell. We move data and schema; workflows are rebuilt natively in Nutshell.

Contractor+ logo

Contractor+

Source

Nutshell

Destination

Nutshell logo

Compatibility

100%

10 of 10

objects map 1:1 between Contractor+ and Nutshell.

Complexity

BStandard

Timeline

24–72 hours of migration clock time

Rollback included Accuracy guarantee Field-level validation

Overview

What this migration involves

Contractor+ organizes contractor-service data around clients, jobs, and estimates — treating each job as a project record with timeline, cost, and billing type. Nutshell is an SMB-focused CRM built on People, Companies, Deals, and Leads, with a JSON-RPC API for data export and custom fields on People, Companies, and Leads. The migration challenge is translating Contractor+ job records (with job type, status, cost, and estimate line items) into Nutshell Deals with custom fields and attached line items. We map clients to Nutshell People, companies to Companies, jobs to Deals using custom fields for contractor-specific attributes, and estimates as deal line items. Activities (notes, tasks, calls) migrate as Nutshell Activities linked to the parent record. Automations, payment reminders, and client-portal configurations are disclosed as non-transferable — we export definitions as documentation for manual rebuild in Nutshell. FlitStack sequences the migration via the Nutshell JSON-RPC API with batched reads, email-based owner lookup, and a 24–48-hour delta pickup window for in-flight changes during cutover.

Field-level fidelity

Every standard and custom field arrives verified.

Schema-aware mapping

AI proposes the map; you confirm before any record moves.

Relationships preserved

Parent–child, lookups, and ownership stay linked.

Full activity history

Calls, emails, meetings — with original timestamps.

Attachments & notes

Documents, uploads, and inline notes move with the record.

Why teams make this switch

Two sides of the same decision

Leaving

Contractor+ logo

Contractor+

What's pushing teams away

  • The subcontractor management feature was repeatedly delayed past its promised release date, frustrating users who needed to create accounts and assign work to sub-contractors.
  • Client Portal lacks granular visibility controls — users cannot hide specific job types or data that do not apply to a particular client, creating confusion and information disclosure risk.
  • Freedom plan caps estimates and invoices at 5 per month, forcing contractors to upgrade to Pro sooner than expected as soon as they start taking on regular work.
  • Users report a learning curve when first exploring the system — creating test quotes, jobs, and invoices takes a few evenings to feel comfortable, and the initial onboarding lacks guided structure.
  • The platform is relatively new and rapidly evolving, meaning features available at evaluation may shift or be removed before sub-ecosystems (like the subcontractor portal) are fully built out.

Choosing

Nutshell logo

Nutshell

What's pulling them in

  • Lowest cost entry point among mid-market CRMs—Foundation plan starts at $13/user/month, making it accessible for teams validating CRM fit before committing.
  • Integrated sales automation and email sequencing on Pro plans without requiring a separate email marketing platform, per verified Capterra reviews.
  • Consistently praised for intuitive interface and fast onboarding, with case studies reporting 100% team adoption rates within initial deployment periods.
  • Strong customer support responsiveness cited across G2 reviews, with dedicated support tiers available on Enterprise plans.
  • Native integrations with WhatsApp, Facebook Messenger, Instagram, and Slack reduce reliance on third-party middleware for common communication channels.

Object mapping

How Contractor+ objects map to Nutshell

Each row shows how a Contractor+ object lands in Nutshell, including any object-level transformations, lookup resolution, or schema-design dependencies.

Typical mapping — final map is confirmed during the sample migration step.

Contractor+

Client

maps to

Nutshell

Person

1:1
Fully supported

Contractor+ clients are person-level records with name, email, phone, address, company name, and tags. Nutshell People store the same attributes, with phones as an array and address as a nested object. The primary mapping is by contact email — unmatched contacts are flagged before migration. We preserve the original client ID in a custom field (e.g., Source_ContractorPlus_ID__c) and the original created date in a custom datetime field for reporting continuity.

Contractor+

Company

maps to

Nutshell

Company

1:1
Fully supported

Nutshell Companies store business‑level data: name, domain, industry, employee count, revenue. Contractor+ companies map directly if the source tracks business entities separately from clients. Multi‑contact companies in Contractor+ collapse to one Company record per business. We also map the company phone and address fields, store the original company ID in a custom field (e.g., Source_ContractorPlus_ID__c) for reconciliation, and flag duplicate companies by domain matching before creating the Nutshell Company record.

Contractor+

Lead

maps to

Nutshell

Lead

1:1
Fully supported

Contractor+ leads that are not yet converted to clients migrate as Nutshell Leads. Lead status, source, and notes map to the corresponding Nutshell Lead fields. Nutshell Lead outcomes map from Contractor+ lead disposition values. We also preserve the original lead ID in a custom field (e.g., Source_ContractorPlus_ID__c), map the lead owner by email lookup to a Nutshell user, and flag duplicate leads by email before insertion.

Contractor+

Job

maps to

Nutshell

Deal

1:1
Fully supported

Contractor+ jobs are project records with job type, status, cost, billing type, description, start/end dates, and line items. Nutshell has no native job object. We map jobs to Deals: the Deal name carries the job title, and we create custom fields on each Deal for job_type, job_status, cost, and billing_type. Estimate line items attach to the Deal as deal line items. Job timelines map to the Deal close date with custom date fields for start and target end.

Contractor+

Estimate

maps to

Nutshell

Deal line items

1:1
Fully supported

Contractor+ estimates contain line items with description, quantity, unit cost, and total. Nutshell Deals support line items with product name, quantity, and price. We transform each Contractor+ estimate into Deal line items attached to the corresponding Deal, preserving description, quantity, and unit cost. Standalone estimates without a linked job become Deals with line items and no pipeline stage.

Contractor+

Activity

maps to

Nutshell

Activity

1:1
Fully supported

Contractor+ stores notes, tasks, call logs, and email records linked to clients or jobs. Nutshell Activities include notes and tasks linked to People or Deals. We migrate notes and tasks directly with original timestamps and owner assignments preserved. Call logs migrate as Activity records with call-type metadata.

Contractor+

Custom fields

maps to

Nutshell

Custom fields (People / Company / Lead / Deal)

1:1
Fully supported

Contractor+ custom fields on clients, companies, and jobs migrate to Nutshell custom fields on the equivalent entity. Nutshell supports custom fields on People, Companies, and Leads. Deal custom fields are created for contractor‑specific attributes like job_type__c and billing_type__c. We map pick‑list values to Nutshell pick‑lists; multi‑select values are stored as comma‑separated strings. Required fields are flagged in the mapping document for the Nutshell admin to set as mandatory after migration.

Contractor+

User / Owner

maps to

Nutshell

User (via email lookup)

1:1
Fully supported

Contractor+ owner IDs on jobs and clients are resolved by matching the owner email to Nutshell users. Unmatched owners are flagged before migration — teams either invite them to Nutshell first or assign records to a fallback owner. Impersonation mode in the Nutshell API ensures changes log as the correct user.

Contractor+

Source system reference

maps to

Nutshell

Custom field for traceability

1:1
Fully supported

We store the original Contractor+ record ID as a custom field on each migrated record (e.g., Source_ContractorPlus_ID__c on Nutshell Person). This enables delta‑run de‑duplication, rollback targeting, and cross‑reference for ongoing data governance. The custom field is applied to People, Companies, Leads, and Deals, allowing any record to be traced back to its source and supporting reconciliation reports that compare record counts and field values between Contractor+ and Nutshell after migration.

Contractor+

Automations and workflows

maps to

Nutshell

Not migratable

1:1
Fully supported

Contractor+ automations (payment reminders, client notifications, job‑scheduling triggers, follow‑up sequences) are disclosed as non‑transferable. We export the automation definitions as a structured document so the Nutshell admin can rebuild triggers using Nutshell's sequence automation and lead‑stage action features. The export includes the rule name, trigger event, condition logic, and the sequence of actions, along with screenshots of the original configuration to guide the rebuild in Nutshell.

Gotchas + challenges

What specifically takes care here

Platform-specific issues from each side, plus the pair-specific challenges that don't show up on either platform's page on its own.

Contractor+ logo

Contractor+ gotchas

High

Freedom plan monthly limits silently block new estimates and invoices

Medium

Client Portal shares all linked Jobs with clients by default

Medium

Contractor+ has no documented public API for bulk export

Nutshell logo

Nutshell gotchas

High

Contact tier limits enforced on import

Medium

No bulk API endpoint requires paginated extraction

Medium

Email sequences not exportable via API

Medium

Foundation plan disables key sales features

Pair-specific challenges

  • Nutshell JSON-RPC API rate limits constrain migration throughput

    Nutshell's JSON-RPC API enforces per-endpoint rate limits that determine how fast records can be written during migration. Large exports with thousands of jobs, estimates, and activity records can be throttled if the migration tool sends requests too quickly. FlitStack AI implements exponential backoff and request queuing against the Nutshell API to stay within limits. The practical effect is that migrations with 50,000+ records may need to run over multiple days rather than hours. We surface this in the planning phase so teams set correct cutover expectations.

  • Contractor+ estimates and invoices have no native Nutshell equivalent

    Contractor+ stores estimates and invoices as first-class objects with line items, quantities, costs, and tax amounts. Nutshell has no native estimate or invoice object — Deals support line items with product name, quantity, and price, but tax fields and complex cost breakdowns are not part of the Nutshell Deal line item model. We transform Contractor+ estimates into Deal line items where the structure permits, and store invoice metadata as custom fields on the Deal. The native Nutshell invoice workflow must be rebuilt using Nutshell's built-in quote feature or a third-party integration.

  • Job-to-Deal transformation requires pre-migration custom field setup in Nutshell

    Contractor+ jobs carry contractor-specific attributes — job type, job status, billing type, internal cost, and start/end dates — that have no direct Nutshell equivalents. Before data can migrate, Nutshell must have custom fields created on the Deal object to receive these values. If the Nutshell account is on a plan with limited custom field allowances or requires admin access for field creation, the migration timeline extends. We deliver a custom field specification document listing every field name, type, and pick-list value to create before the migration runs.

  • Owner resolution by email can leave records unassigned if Nutshell users are not provisioned

    Contractor+ records carry owner IDs tied to team members. Nutshell requires a matching user to exist in the destination account before an owner can be assigned via API. If a Contractor+ team member has not been invited to Nutshell, their records are flagged as unmatched. We resolve by email domain match when possible, but teams must provision all active Nutshell users before the migration to avoid ownerless records landing in the CRM. This is a common point of delay on migrations from any CRM where the user rosters are not synchronized in advance.

  • Automations and payment reminders cannot be migrated and must be rebuilt manually

    Contractor+ automations (payment reminder triggers, client follow-up sequences, job scheduling notifications, and status-change alerts) operate on Contractor+ event hooks that do not exist in Nutshell. Nutshell's automation model uses lead-stage triggers and personal email sequences, which are architecturally different. We export the full automation definitions as a structured document listing every rule, trigger condition, and action so the Nutshell admin can rebuild equivalent automations. This disclosure is required — teams frequently assume workflow logic migrates automatically and are surprised to learn it does not.

Migration approach

Six steps for a successful Contractor+ to Nutshell data migration

  1. Audit Contractor+ data model and plan field mappings

    FlitStack AI begins every migration with a structured data audit. We connect to the Contractor+ API under scoped read access and enumerate every client, lead, job, estimate, activity, and custom field definition. We generate a data map that identifies non-transferable records (automations, payment reminders, integrations) and flags them clearly in the migration plan. The audit output is reviewed with the team before any data moves, so there are no surprises on cutover day.

  2. Create Nutshell custom fields and configure Deal schema

    Before data is written, we deliver a custom field specification for Nutshell: every field name, type, and pick-list value required to receive Contractor+ job attributes. The Nutshell admin creates the fields (Job_Type__c, Job_Status__c, Billing_Type__c, Job_Cost__c, Job_Start_Date__c, Job_End_Date__c, Source_ContractorPlus_ID__c) on the Deal object before the migration runs. This step is the most common source of delay — we recommend completing it at least 3 business days before the migration window.

  3. Sequence and run the migration via Nutshell JSON-RPC API

    FlitStack migrates entities in dependency order: Companies first (since People require a companyId), then People, then Leads, then Deals with custom fields populated from Contractor+ job attributes. Estimate line items attach to the corresponding Deal. Activities link to the migrated Person or Deal parent. Owner IDs resolve via email lookup against Nutshell users with impersonation mode ensuring audit logs reflect the correct user. Nutshell API rate limits are respected via exponential backoff; large migrations run over multiple days to stay within throughput constraints.

  4. Run sample migration with field-level diff

    A representative sample — typically 100 to 500 records spanning clients, jobs, estimates, and activities — migrates first. We generate a field-level comparison between the Contractor+ source record and the resulting Nutshell record, verifying that job type, billing type, job cost, estimate line items, and owner assignments rendered correctly. The diff is reviewed by the team before the full run commits. This is the checkpoint where misconfigured custom fields or failed owner lookups are caught and corrected.

  5. Execute full migration with delta-pickup cutover

    The full dataset migrates after sample approval. A 24–48-hour delta pickup window runs concurrently, capturing any new or modified records in Contractor+ that changed during the migration. FlitStack AI produces a complete audit log of every record written, including source ID, destination ID, timestamp, and operation type. One-click rollback is available if the reconciliation check fails. The migration is considered complete once delta records are applied and record counts match the pre-migration audit.

  6. Deliver migration handoff summary and rebuild reference

    FlitStack delivers a structured handoff document covering what migrated, what was stored as custom fields for reference, what requires manual rebuild in Nutshell (automations, payment reminders, estimate templates), and the full automation export for the Nutshell admin to use as a rebuild guide. The FlitStack audit log and rollback documentation are provided for the IT team. Post-migration support is available to resolve any reconciliation issues within the agreed support window.

Platform deep dives

Context on both ends of the pair

Contractor+ logo

Contractor+

Source

Strengths

  • Comprehensive field-service stack covering CRM, scheduling, estimating, invoicing, and payment acceptance in one app
  • Generous free tier that lets contractors run a small operation without any monthly cost
  • Responsive in-app chat and coaching support cited positively across multiple G2 reviews
  • Live material cost data and AI-powered estimating help contractors price jobs accurately
  • Multi-workspace support allows separating clients or business units within a single account

Weaknesses

  • Client Portal has no granular visibility controls, making it awkward to share selective information with clients
  • Subcontractor feature was repeatedly delayed, limiting use cases for contractors who manage sub-trades
  • API documentation is not publicly accessible, making programmatic data export more difficult
  • Rapid feature evolution means the data model may change between evaluation and active use
  • Freedom plan's 5-estimates-and-invoices-per-month ceiling fills up quickly for active contractors
Nutshell logo

Nutshell

Destination

Strengths

  • Simple, intuitive interface with minimal learning curve for sales teams new to CRM
  • Per-seat pricing is transparent and predictable, with annual billing reducing monthly cost
  • Full data export tool available for all account data including backups
  • Open JSON-RPC API allows programmatic access to all core objects
  • Native multichannel engagement (email, SMS, WhatsApp) without third-party add-ons for communication

Weaknesses

  • Reporting and analytics are considered weak, requiring manual Excel exports for detailed analysis
  • No bulk API endpoint—migration requires paginated API reads that must be rate-limited carefully
  • JSON-RPC API is less common than REST, requiring custom integration code compared to standard REST CRMs
  • Add-on costs (Forms, Nutshell IQ, Email Marketing) are per-company charges that stack on top of per-seat pricing
  • Feature restrictions on entry-level plans mean teams often need mid-tier to get basic automation

Complexity grading

How hard is this migration?

Standard CRM migration. 1 of 8 objects need a mapping; the rest are 1:1.

B

Overall complexity

Standard migration

Derived from compatibility, mapping clarity, API constraints, and data volume across Contractor+ and Nutshell.

  • Object compatibility

    B

    1 of 8 objects need a mapping; the rest are 1:1.

  • Field mapping clarity

    C

    Field mapping is derived from defaults — final spec confirmed during the sample migration.

  • Timeline complexity

    B

    8-object category — typical timelines run 2–7 days end-to-end.

  • API constraints

    B

    Contractor+: Not publicly documented in the developer reference.

  • Data volume sensitivity

    B

    Contractor+ doesn't expose a bulk API — REST + parallelization used for high-volume runs.

Estimator

Estimate your Contractor+ to Nutshell migration cost

Rule-based pricing — no per-record fees, no manual quotes. Migrations over 2M records are scoped individually.

Step 1

What are you migrating?

Pick a category, then your source and destination platforms.

Category

FAQ

Frequently asked questions about Contractor+ to Nutshell data migrations

Answers to the questions buyers ask most during Contractor+ to Nutshell migration scoping. Not seeing yours? Book a call.

Can't find your answer?

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Most Contractor+ to Nutshell migrations complete in 24 to 72 hours of migration clock time for accounts with fewer than 30,000 records. Planning and Nutshell custom field setup typically adds 3 to 7 business days before the migration window. Large accounts with 50,000+ records or complex job-to-deal transformations with many custom fields can extend to 5 to 10 days. Nutshell's JSON-RPC API rate limits affect large batch imports and can push large migrations over multiple days.

Adjacent paths

Related migrations to explore

Ready when you are

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