CRM migration

Migrate from Kartra to Nutshell

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

Kartra logo

Kartra

Source

Nutshell

Destination

Nutshell logo

Compatibility

88%

7 of 8

objects map 1:1 between Kartra and Nutshell.

Complexity

BStandard

Timeline

2-3 weeks

Rollback included Accuracy guarantee Field-level validation

Overview

What this migration involves

Kartra and Nutshell serve fundamentally different business models. Kartra bundles email marketing, funnels, memberships, checkout, and a basic CRM under one subscription, charging per contact. Nutshell is a dedicated sales CRM with pipeline management, engagement tracking, and per-user pricing. Teams move from Kartra to Nutshell when they want a purpose-built CRM rather than a jack-of-all-trades platform, and they need the contact and engagement data they have accumulated to transfer intact. The migration challenge is that Kartra has no bulk API — all data exits as CSV via the web UI — while Nutshell accepts import via REST API and a native Import2 connector. We extract Kartra contacts, transactions, tags, and custom fields, normalize the CSV, and ingest into Nutshell using the appropriate import method. We flag that Kartra behavioral data (form completions, survey results, membership access) does not export unless the account was configured to apply a tag on each event, and we audit the contact list before migration to surface inactive and bounced records that may trigger a Nutshell seat or pricing adjustment. Sequences, automations, and funnel logic do not migrate; we deliver a written inventory for the customer to rebuild in Nutshell or another automation tool.

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

Kartra logo

Kartra

What's pushing teams away

  • CRM depth is shallow compared to dedicated CRMs — no true lead scoring engine, limited pipeline management, and basic contact profiles frustrate users with complex sales processes.
  • Steep learning curve despite a polished UI; users report months of trial-and-error before feeling comfortable with automation sequences and behavioral triggers.
  • Contact-based pricing means hitting your plan limit forces an upgrade even if most contacts are inactive, creating pressure to purge records to stay in tier.
  • The mobile app is widely described as limited and unreliable, forcing users to manage most tasks from a desktop browser.
  • Support response times lag behind competitors, with users citing multi-day waits for ticket resolution during critical issues.

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 Kartra objects map to Nutshell

Each row shows how a Kartra 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.

Kartra

Contact (formerly Lead)

maps to

Nutshell

Person

1:1
Fully supported

Kartra Contacts (renamed from Leads in October 2024) map to Nutshell Person records. Standard fields — first name, last name, email, phone, address — map cleanly. We export the Kartra CSV oldest-to-newest to preserve lead creation order and replay it as the person.joined_at timestamp in Nutshell. GDPR Status and GDPR Status Date from the Kartra CSV map to Nutshell's subscription tracking fields. The Kartra contact ID is preserved in a custom field for cross-reference during reconciliation.

Kartra

Company

maps to

Nutshell

Company

1:1
Fully supported

Kartra does not have a native Company object, but contacts may contain a company name field. We extract company names from the Kartra contact CSV, deduplicate them, create Nutshell Company records, and link Person records to the corresponding Company via the person.company_id lookup. If the Kartra export does not contain company data, we flag this during scoping and the customer decides whether to populate it from another source or leave persons unlinked.

Kartra

Tag

maps to

Nutshell

Tag

1:1
Fully supported

Kartra Tags are stored as comma-separated strings within the contact CSV. We parse and split them into individual Tag records in Nutshell, then create TagAssignment records linking each tag to the corresponding Person. We audit the customer's tag taxonomy during scoping to identify behavioral tags (form completed, webinar registered, membership accessed) that indicate engagement data that may otherwise be absent from the export. Tag names are normalized to lowercase with hyphens replacing spaces for consistency.

Kartra

List

maps to

Nutshell

List

1:1
Fully supported

Kartra Lists are exported as comma-separated values per contact. We split list memberships and create Nutshell List records, then assign each Person to the relevant lists via List membership. If Nutshell Lists do not match the customer's segmentation logic, we document the gap and propose a List-to-Segment reconfiguration before migration so the segmentation model is intentional in the destination.

Kartra

Custom Field

maps to

Nutshell

Custom Field

1:1
Fully supported

Kartra supports five custom field types: input_field (text), text_area, drop_down, radio_button, and checkbox. We read the Kartra field schema via the Kartra UI to determine types, then create matching Nutshell custom fields on the Person, Company, or Lead object before import. Drop-down and radio button fields map to Nutshell dropdown or multi-select picklist fields with the same value options. Checkbox fields map to Nutshell checkboxes. Note: Kartra's standard contact fields and custom field labels must be reviewed manually because field names in the CSV export header row may differ from the display labels.

Kartra

Transaction

maps to

Nutshell

Activity (Log Entry)

1:1
Fully supported

Kartra exports transactions as a separate CSV from the contacts export. We map transaction fields — amount, product name, purchase date, and payment method — to Nutshell Activity log entries attached to the corresponding Person. The Kartra transaction ID is preserved in a custom field on the activity for reconciliation. Note: Kartra does not export total customer spend as a single field; if the customer requires a lifetime value calculation in Nutshell, we compute it from the transactions CSV and write it to a custom person.lifetime_value__c field.

Kartra

Subscription

maps to

Nutshell

Activity (Log Entry)

1:1
Fully supported

Kartra Subscription records (active, cancelled, paused status with start date and associated product or membership) export separately from contacts. We map subscription status and start date to Nutshell Activity log entries on the Person record. Subscription revenue and MRR figures are not available in the Kartra export. We document this gap and recommend that the customer track subscription status manually in Nutshell or via a third-party integration if real-time subscription data is required.

Kartra

Affiliates

maps to

Nutshell

Tag or Custom Field

lossy
Mapping required

Kartra affiliate sign-up events are tracked via tags or the API events system. We map affiliate relationships to a dedicated Nutshell tag (e.g., affiliate) or a custom person.affiliate_status__c dropdown field, depending on whether the customer needs to track affiliate status as a label or a structured field. If the customer requires a full affiliate tracking system, we recommend a dedicated affiliate management tool post-migration.

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.

Kartra logo

Kartra gotchas

High

Behavioral history is absent from Kartra exports unless tags were pre-set up

High

Contact-based pricing requires pre-migration record audit

High

No bulk or programmatic API for extraction

Medium

Sequences, automation logic, and workflows cannot be exported

Medium

GDPR status fields export but require manual review at destination

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

  • Behavioral history is absent from Kartra exports unless tags were pre-set

    Kartra explicitly does not export form completions, survey results, webinar registrations, or membership access as data rows. The only path to preserving this information is if the account was configured to apply a tag on each event. We audit the customer's tag taxonomy during scoping to identify whether behavioral tags exist. If none are present, we document which engagement data will not be present in the migration output and surface this to the customer before migration begins so that expectations are set and no post-migration disputes arise about missing data.

  • No bulk or programmatic API for Kartra extraction

    Kartra does not expose a bulk data export API. All contact, transaction, and subscription data must be exported via the web UI as individual CSV files. Large accounts with more than 10,000 contacts require multiple sequential UI exports in batches. We chunk large exports, validate each file's field completeness against the Kartra field schema, and reassemble them into a unified migration dataset. This manual UI step increases timeline risk for accounts over 10,000 contacts and is factored into the project estimate during scoping.

  • Contact-based pricing requires pre-migration record audit

    Kartra bills by total Contact count. Many accounts accumulate inactive, bounced, and duplicate contacts over years of use. We audit the Kartra contact list during pre-migration profiling to identify bounced addresses, exact duplicates, and records with no email and no activity in the past 24 months. We present a clean count versus the raw export count so the customer can decide whether to suppress inactive records before migration. Suppressing reduces the contact volume going into Nutshell and avoids unexpected seat or storage adjustments in the destination.

  • Kartra custom field labels differ from CSV header names

    The Kartra CSV export header row uses internal field names that may differ from the display labels shown in the Kartra UI. We cross-reference the Kartra field schema (visible in the Kartra UI under contact settings) against the CSV headers to produce an accurate field mapping before Nutshell import. Skipping this step results in custom fields being mapped to wrong Nutshell fields or dropped entirely during ingest.

  • Sequences, automation logic, and workflows cannot be exported from Kartra

    Kartra Sequences are multi-step email automation flows with conditional branching, delays, and action triggers. This workflow logic does not exist as a data file. We cannot migrate sequence definitions or automation rules. We export the contact list with all available tag and list metadata so that new automations can be configured in Nutshell around the migrated data once the destination is live. We deliver a written inventory of the Kartra Sequences and automations we observed in the account (based on tag usage patterns) as a starting point for rebuild.

Migration approach

Six steps for a successful Kartra to Nutshell data migration

  1. Pre-migration profiling and scoping

    We request read-only access to the Kartra account or a full CSV export from the customer. We audit the contact list for total count, bounced records, duplicates, and records with no email address. We review the Kartra custom field schema, tag taxonomy, list memberships, and transaction export. We identify behavioral tags (form completed, webinar registered) that indicate engagement data that may otherwise be absent. We deliver a written scoping document with the clean record count, objects available for migration, objects not available, and an estimated timeline. The customer approves scope before work begins.

  2. CSV extraction and multi-file reconciliation

    We guide the customer through the Kartra CSV export process for contacts, transactions, and subscriptions. For accounts with more than 10,000 contacts, we chunk the export into sequential batches using Kartra's date-range filters to avoid UI timeouts. We download the transaction CSV separately and cross-reference it against the contact list using email as the dedupe key. We flag any contact in the transaction CSV that does not appear in the contact export and include it as a supplemental record. The output is a unified, deduplicated contact dataset with transactions joined and tag/list fields parsed into individual values.

  3. Nutshell schema preparation and custom field creation

    We create all required Nutshell custom fields before import, matching Kartra field types to Nutshell field types. Drop-down fields get pre-populated value lists from the Kartra schema. Tags are created as Nutshell Tag objects in advance of import. Lists are created as Nutshell List objects. We verify the Nutshell account has sufficient user seats and storage before proceeding. If the customer has a Nutshell sandbox or trial account, we run a test import there first to validate field mapping before production import.

  4. Production import with reconciliation

    We import contacts (as Nutshell People) into Nutshell via the Import2 connector or REST API, preserving the Kartra contact ID in a custom field for cross-reference. We import transactions and subscriptions as Nutshell Activity log entries attached to the corresponding Person records. We apply tags and list memberships as separate post-import steps. After each import phase, we reconcile the Nutshell record count against the expected count from the scoping document. Any records that fail import (due to missing required fields, invalid email format, or API errors) are logged to a skipped-records report for customer review.

  5. Cutover, final delta, and cleanup handoff

    We freeze writes to the Kartra account during the cutover window, run a final delta export of any records modified since the initial export, and import the delta into Nutshell. We deliver a reconciliation summary comparing the Kartra source record counts to the Nutshell destination record counts for each object. We remove the Kartra contact ID custom field if the customer does not want to retain it. We do not cancel the Kartra account inside the migration scope; the customer manages account cancellation separately after verifying the Nutshell data is complete.

Platform deep dives

Context on both ends of the pair

Kartra logo

Kartra

Source

Strengths

  • Unlimited email and SMS at every tier with no per-message fees or platform transaction charges.
  • Built-in video hosting, page builder, membership sites, and calendar booking eliminate separate tool subscriptions.
  • Pricing scales with contact count (2,500 to 100,000+) rather than feature gating; even Starter includes all core features except agency mode.
  • Kartra provides a documented migration path (CSV export) and explicit guidance on what can and cannot be moved, making FlitStack AI's extraction straightforward.

Weaknesses

  • No bulk API for programmatic data extraction — all migration work depends on Kartra's UI-based CSV export, which cannot be automated end-to-end.
  • Behavioral and engagement data (form completions, survey results, webinar attendance, membership access history) is absent from exports unless explicit tags were set up to capture these events.
  • CRM functionality is intentionally basic — limited pipeline stages, no true lead scoring, and shallow opportunity management compared to HubSpot or Salesforce.
  • Dedicated content-marketing and blogging tools are weak, making Kartra a poor fit for businesses where organic blog traffic is a primary growth channel.
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. 2 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 Kartra and Nutshell.

  • Object compatibility

    B

    2 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

    Kartra: Hardcoded ceiling of 20 inbound API calls per second per Kartra App..

  • Data volume sensitivity

    B

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

Estimator

Estimate your Kartra 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 Kartra to Nutshell data migrations

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

Can't find your answer?

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Long-tail migrations with clean record sets (under 10,000 contacts, no custom objects, no complex transaction history) complete in two to three weeks. Accounts requiring pre-migration contact audit, multi-file CSV reconciliation, or custom field schema design move to four to six weeks. The Kartra CSV export step (performed by the customer with our guidance) adds one to three days depending on contact volume and UI batching requirements.

Adjacent paths

Related migrations to explore

Ready when you are

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