CRM migration
Field-level mapping, validation, and rollback between Wice CRM and Nutshell. We move data and schema; workflows are rebuilt natively in Nutshell.
Wice CRM
Source
Nutshell
Destination
Compatibility
5 of 11
objects map 1:1 between Wice CRM and Nutshell.
Complexity
BStandard
Timeline
3-5 weeks
Overview
Moving from Wice CRM to Nutshell requires working around Wice's absence of a documented public API, which makes this migration CSV-driven rather than API-driven. We extract Contacts, Organizations, Deals, Projects, and Tasks from Wice's built-in CSV export, then write them to Nutshell in dependency order: Organizations first, then Contacts with the resolved Account reference, then Deals with the resolved Person and Account lookups, then the project and task hierarchy. Wice's category system does not map 1:1 to Nutshell's tag model; we export category assignments as a multi-value text field and let the customer decide whether to configure them as Nutshell tags post-import. Custom pipeline stages require an explicit stage-mapping table generated during discovery. Hold files (attachments), workflows, campaigns, reports, and dashboard configurations do not migrate; we deliver a written inventory of these elements for the customer to rebuild in Nutshell. Nutshell's JSON-RPC API with Basic auth and per-domain API tokens drives the destination write, with rate-limit handling on find requests and bulk insert support for CSV-derived records.
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 Wice CRM 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.
Wice CRM
Organization
Nutshell
Company
1:1Wice Organizations map to Nutshell Companies. Wice enforces that Contacts must be linked to an Organization, so we export Organizations first and use the Wice Organization ID as the dedupe key during Nutshell Company import. Company name, address fields, phone, and website migrate directly. Any Organization without a name is flagged for the customer to name before import.
Wice CRM
Contact
Nutshell
Person
1:1Wice Contacts map to Nutshell People. We resolve the parent Organization to a Nutshell Company by name or ID match during the Contact export phase, then set the AccountId lookup on each Person record. Name, email, phone, title, and address fields migrate directly. Custom contact properties (Gold tier on Wice) map to Nutshell custom fields on People; we create the Nutshell custom fields before import begins.
Wice CRM
Deal
Nutshell
Deal
1:1Wice Deals map to Nutshell Deals with the Person (Contact) and Company (Organization) lookups resolved at migration time. Wice allows fully custom pipeline stages per installation, so we capture the actual Wice stage names during discovery and generate a stage-mapping table before any Deal records are written to Nutshell. Deal value, expected close date, and owner assignment migrate directly.
Wice CRM
Deal Stage
Nutshell
Deal Stage
lossyEach distinct Wice pipeline stage becomes a Nutshell Deal stage value. We configure the Nutshell Deal stages in the account settings before migration, matching Wice stage names to Nutshell stage names chosen by the customer. Stage mapping errors are the most common cause of deal-value misrepresentations post-migration, so we validate the stage table with the customer's sign-off before any Deal writes begin.
Wice CRM
Project
Nutshell
Milestone or Task grouping
1:manyWice Projects contain Tasks and custom fields. We export Projects as Nutshell Milestones if the customer uses Nutshell's milestone feature, or we export the project name as a Nutshell tag on the child tasks to preserve grouping. Project-level custom fields map to custom fields on the related tasks. Orphan tasks (not inside a project) export as standalone Nutshell tasks.
Wice CRM
Task
Nutshell
Task
1:1Wice Tasks live inside Projects or standalone linked to contacts or deals. We export both contexts. Standalone tasks linked to a Contact map to Nutshell Tasks with the Person lookup resolved. Tasks inside a project inherit the project tag or milestone grouping. Task status, priority, due date, and assignee (owner) migrate directly. Orphaned tasks are flagged for customer review before import.
Wice CRM
Campaign
Nutshell
Tag or Note
lossyWice differentiates basic and advanced campaigns. We export campaign names and targeting properties as a text property or Nutshell tag on the related Contact and Deal records. Campaign history (sent/open/click data) does not export from Wice and cannot be migrated. The customer rebuilds campaign tracking in Nutshell or a dedicated marketing platform post-migration.
Wice CRM
Ticket
Nutshell
Person Note or Tag
lossyWice Tickets linked to contacts or organizations map to Nutshell Notes attached to the corresponding Person record, with a ticket status tag applied. Wice custom ticket fields map to custom fields on the Note or to Nutshell People custom fields at the customer's choice. Ticket numbering sequences reset in Nutshell; we document the original Wice ticket numbers in a custom field for reference.
Wice CRM
Note
Nutshell
Note
1:1Wice free-text notes attached to contacts, organizations, deals, and projects migrate to Nutshell Notes linked to the corresponding Person, Company, or Deal record. Note body migrates as plain text. Wice formatting (bold, lists) may be simplified. We preserve the source-object linkage so notes remain findable in context.
Wice CRM
Category
Nutshell
Tag or Multi-value Text
lossyWice uses a category system for deduplication and classification that does not map 1:1 to Nutshell's tag model. We export category assignments as a comma-separated text field or map to Nutshell tags if the customer chooses. The customer decides during scoping whether to use tags (actionable) or text fields (audit-only) for the category mapping.
Wice CRM
Custom Property
Nutshell
Custom Field
lossyWice custom fields on contacts, organizations, deals, and projects (Gold tier) map to Nutshell custom fields on People, Companies, and Deals. Picklist-style custom fields require value translation if the destination picklist values differ. We create Nutshell custom fields before import begins so that CSV imports map to the correct field IDs.
| Wice CRM | Nutshell | Compatibility | |
|---|---|---|---|
| Organization | Company1:1 | Fully supported | |
| Contact | Person1:1 | Fully supported | |
| Deal | Deal1:1 | Fully supported | |
| Deal Stage | Deal Stagelossy | Fully supported | |
| Project | Milestone or Task grouping1:many | Fully supported | |
| Task | Task1:1 | Fully supported | |
| Campaign | Tag or Notelossy | Fully supported | |
| Ticket | Person Note or Taglossy | Fully supported | |
| Note | Note1:1 | Fully supported | |
| Category | Tag or Multi-value Textlossy | Fully supported | |
| Custom Property | Custom Fieldlossy | 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.
Wice CRM gotchas
No publicly documented REST API
Attachment export is a manual step
Custom pipeline stages require explicit mapping
On-premise installations vary by version
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
Discovery and export scoping
We audit the source Wice installation to identify record counts for contacts, organizations, deals, projects, tasks, tickets, and notes. For cloud installations, we request the customer to run Wice's built-in CSV export for each object type and share the files via a secure transfer. For on-premise installations, we request database access or a database export so we can retrieve the full relationship graph including Contact-to-Organization IDs. We also document Wice's custom pipeline stages, custom fields, and category assignments during this phase.
Schema design and Nutshell custom field creation
We create the Nutshell custom fields for People, Companies, and Deals before any data import. This includes mapping Wice custom properties to typed Nutshell fields (text, number, date, picklist), configuring the Nutshell Deal stages to match the Wice stage names from the discovery phase, and setting up any picklist values required for migrated custom fields. We configure stage mapping with customer sign-off before moving to import.
Attachment inventory and file export checklist
We flag every Wice record with Hold file attachments and generate a file-level export checklist for the customer. The customer downloads attachments individually from Wice's UI or scripts the download for on-premise installations. We stage the exported files for re-upload to Nutshell post-migration. Attachment export is the most time-intensive manual step and should run in parallel with the record migration to avoid blocking go-live.
Test migration and reconciliation
We run a test migration into a Nutshell sandbox or trial account using the exported CSV files. We validate record counts (Organizations in, People in, Deals in, Tasks in), spot-check 20-30 records against the Wice source for field accuracy, and confirm that the Contact-to-Organization relationship resolves correctly. Any mapping corrections happen in the test phase before production migration begins.
Production migration in dependency order
We run production migration in dependency order: Companies (from Wice Organizations) first, then People (with AccountId resolved), then Deals (with PersonId and AccountId resolved), then Tasks (with Person or Deal lookups resolved), then Notes. Each phase emits a row-count reconciliation report before the next phase begins. CSV files are written via Nutshell's import API with batch chunking to handle record volumes efficiently.
Cutover, validation, and automation inventory delivery
We freeze Wice writes during cutover, run a final delta export of any records modified during the migration window, then mark Nutshell as the system of record. We deliver the written inventory of Wice workflows, automations, reports, and dashboard configurations for the customer's admin to rebuild in Nutshell. We support a one-week hypercare window where we resolve any data quality issues raised by the team. We do not rebuild Wice workflows or automations as Nutshell Workflows inside the migration scope; that is a separate configuration engagement.
Platform deep dives
Wice CRM
Source
Strengths
Weaknesses
Nutshell
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 Wice CRM and Nutshell.
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
Wice CRM: Not publicly documented.
Data volume sensitivity
Wice CRM 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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