CRM migration
Field-level mapping, validation, and rollback between Cronberry and Nutshell. We move data and schema; workflows are rebuilt natively in Nutshell.
Cronberry
Source
Nutshell
Destination
Compatibility
6 of 9
objects map 1:1 between Cronberry and Nutshell.
Complexity
BStandard
Timeline
1-3 weeks
Overview
Cronberry and Nutshell serve overlapping segments of small B2B teams but differ fundamentally in data architecture. Cronberry uses a flat Contact model with segment and tag associations, stores omnichannel campaign data across Email, SMS, Push, and WhatsApp channels, and lacks a publicly documented REST API, making migration contingent on Cronberry's export utilities and direct database access. Nutshell uses a People and Company model with a standard pipeline-driven Opportunity object, built-in email marketing, and a documented REST API. We extract Cronberry's contact and campaign data in dependency order, flag duplicate records during scoping, preserve behavioral event history as Activities in Nutshell, and document every Cronberry Smart Segment and automation for the customer to rebuild manually in Nutshell's workflow builder. Landing Pages, rendered form layouts, and channel authentication credentials do not migrate as structured data.
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 Cronberry 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.
Cronberry
Contact
Nutshell
Person (Contact)
1:1Cronberry Contact records map to Nutshell People. We preserve name fields, email, phone, and address data directly. Cronberry tags and segment memberships map to Nutshell People Tags. Repeat-contact deduplication is applied during scoping: we match on email, name, and phone, generate a deduplication report for the customer to approve, and suppress or merge duplicates before import. Cronberry's custom contact fields map to Nutshell custom fields on Person, which are available from the Foundation tier onward.
Cronberry
Company
Nutshell
Company
1:1Cronberry Company-level data (where present) maps to Nutshell Company records. Field-level mapping is required because Cronberry's company schema varies by implementation and may include custom properties. Company names and domains migrate directly; any custom fields require a Nutshell custom field created before the import phase begins.
Cronberry
Campaign
Nutshell
Campaign
1:1Cronberry Campaign records carry channel information (Email, SMS, Push, WhatsApp), timing rules, and target segment assignments. We extract campaign names, status, start and end dates, and channel type. Campaign performance metrics (open rates, click rates, send volumes) migrate to Nutshell Campaign custom fields because Nutshell's standard Campaign object tracks cost, status, and type without native performance metrics beyond members. Segment associations are documented separately for rebuild in Nutshell's list builder.
Cronberry
Smart Segment
Nutshell
People Tag (reconstruction)
lossyCronberry Smart Segments are built from conditional rules against contact field values. These rules are not exported as a reusable schema. We reverse-engineer each segment by querying which contacts belong to it, then document the implied conditions so they can be reconstructed manually in Nutshell using its People Tags and filter-based list feature. The customer receives a written segment map with field names, operators, and values per original Cronberry Smart Segment.
Cronberry
Form (Drag-and-Drop Builder)
Nutshell
Form (Field Schema)
lossyCronberry Form definitions including field structure, conditional logic, and submission targets are extractable as a field schema. We map form field labels and types to Nutshell form fields. Visual drag-and-drop layout and conditional branching rules cannot be preserved 1:1 and must be rebuilt manually in Nutshell's form builder. The customer receives a field inventory per original form to guide the rebuild.
Cronberry
User/Agent
Nutshell
User
1:1Cronberry User and agent records map to Nutshell Users. We match by email address and migrate display name, role, and basic identity. Cronberry's permission and role structures differ significantly from Nutshell's user roles (Admin, Manager, Standard), so we migrate identity only and defer permission configuration to the customer during Nutshell setup.
Cronberry
Event Log / Behavioral Tracking
Nutshell
Activity
1:1Cronberry tracks behavioral events (email opens, clicks, push interactions, SMS replies) against contact records. We map these to Nutshell Activities with the event type recorded in the Activity description or a custom field. Nutshell Activities appear in the Person and Company timelines. Event schema may require field mapping because Cronberry's behavioral event properties do not map directly to Nutshell's Activity object fields; we document the mapping per event type during scoping.
Cronberry
Template (Email, SMS, Push)
Nutshell
Template (Email Template, Sequence Step)
1:1Message templates with personalization variables are migratable from Cronberry. We extract template content and variable placeholders, then map them to Nutshell's Email Template format or Sequence Step content depending on the intended use. Rich formatting and HTML structure may require adjustment because the two platforms use different rendering engines. The customer reviews template output in Nutshell's preview before finalizing.
Cronberry
Channel Configuration (Email, SMS, Push, WhatsApp)
Nutshell
Channel Re-registration (External)
lossyCronberry's multi-channel setup stores channel credentials and sender configurations (API keys, sender IDs, verified domains). These credentials cannot be transferred to Nutshell. We document the original channel configuration as a checklist so the customer's admin can re-register sender domains, verify email sending domains in Nutshell, and reconfigure SMS sender IDs through Nutshell's Twilio integration or their own SMS provider. This is a manual reconfiguration step outside the data migration scope.
| Cronberry | Nutshell | Compatibility | |
|---|---|---|---|
| Contact | Person (Contact)1:1 | Fully supported | |
| Company | Company1:1 | Fully supported | |
| Campaign | Campaign1:1 | Fully supported | |
| Smart Segment | People Tag (reconstruction)lossy | Fully supported | |
| Form (Drag-and-Drop Builder) | Form (Field Schema)lossy | Fully supported | |
| User/Agent | User1:1 | Fully supported | |
| Event Log / Behavioral Tracking | Activity1:1 | Fully supported | |
| Template (Email, SMS, Push) | Template (Email Template, Sequence Step)1:1 | Fully supported | |
| Channel Configuration (Email, SMS, Push, WhatsApp) | Channel Re-registration (External)lossy | 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.
Cronberry gotchas
No documented public API for bulk export
UI overhaul shipped without training or documentation
Smart Segment logic cannot be exported directly
Repeat-contact detection produces duplicate records
Nutshell gotchas
Contact tier limits enforced on import
No bulk API endpoint requires paginated extraction
Email sequences not exportable via API
Foundation plan disables key sales features
Pair-specific challenges
Migration approach
Export coordination and scoping discovery
We request structured data exports from Cronberry through their internal tools or direct database access, coordinated with Cronberry support. We audit the export scope across Contacts, Companies, Campaigns, Segments, Forms, Users, Event Logs, and Templates. We identify any data not included in the export and flag high-priority gaps such as custom fields, behavioral event history, and segment membership data. The scoping output is a written data inventory and a confirmation of what will and will not migrate from the source account.
Deduplication pass and segment reverse-engineering
We run deduplication against the Cronberry export using email, name, and phone as match keys. We generate a deduplication report presenting probable duplicate pairs and counts, which the customer reviews and approves before we suppress or merge duplicates. Simultaneously, we reverse-engineer Cronberry Smart Segment membership by querying which contacts belong to each segment, inferring the conditional rules from the contact data, and documenting the implied conditions as a written segment map for rebuild in Nutshell.
Nutshell schema design and custom field creation
We design the destination schema in Nutshell before any data import. This includes creating any custom fields on Person and Company to receive Cronberry custom contact properties, designing People Tags to mirror Cronberry tag and segment structure, mapping Cronberry campaign data to Nutshell Campaign records with custom performance fields, and configuring any Nutshell Automation Rules to be mapped from the Cronberry automation inventory. Nutshell's Foundation tier supports custom fields, which covers most migration requirements at the lowest price point.
Data import in dependency order
We import data into Nutshell in dependency order: Companies first (from Cronberry Company records), then People (Contacts with tag associations resolved), then Campaigns (with segment associations documented), then Activity history (behavioral events mapped to Nutshell Activities), then Templates (email and SMS content). Each phase emits a row-count reconciliation report before the next phase begins. User records are matched by email and held in a reconciliation queue for any missing Nutshell User accounts to be provisioned by the customer.
Channel re-registration and template review
We deliver a channel re-registration checklist documenting Cronberry's original sender domains, SMS sender IDs, and push notification credentials so the customer's admin can reconfigure these in Nutshell or their own provider. We also deliver migrated email and SMS templates in Nutshell's template format for customer review and formatting adjustment before use in live campaigns.
Automation rebuild handoff and validation
We freeze writes on the source data during cutover, run a final delta migration of any records modified during the migration window, then hand off. We deliver the written automation inventory and segment map to the customer's admin for rebuild in Nutshell's Automation Rules or Sequences add-on. We support a three-day hypercare window to resolve reconciliation issues identified in the first week of Nutshell usage. We do not rebuild Cronberry automations as Nutshell automation code inside the migration scope.
Platform deep dives
Cronberry
Source
Strengths
Weaknesses
Nutshell
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 Cronberry and Nutshell.
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
Cronberry: Not publicly documented..
Data volume sensitivity
Cronberry 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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