CRM migration
Field-level mapping, validation, and rollback between Tango CRM and Nutshell. We move data and schema; workflows are rebuilt natively in Nutshell.
Tango CRM
Source
Nutshell
Destination
Compatibility
7 of 10
objects map 1:1 between Tango CRM and Nutshell.
Complexity
CModerate
Timeline
3-5 weeks
Overview
Moving from Tango CRM to Nutshell requires first resolving the export question for every object type, because our research found no publicly documented API for Tango CRM. We begin every engagement with a scoping call to confirm which export methods are available (CSV export, browser-based capture, or direct database access) and design the migration plan accordingly. For standard CRM objects (Contacts, Companies, Deals, Activities), we extract via the confirmed path, normalize the field structure, and load into Nutshell using its documented REST API with batch chunking and rate-limit handling. Pipeline stage names do not carry over as labels — we produce a stage mapping worksheet and reconcile during import. Custom fields on each object require explicit type-to-type mapping against Nutshell's supported field types. Relationship chains between Contacts, Companies, and Deals are preserved in our staging layer before writeback. We do not migrate attachments, workflows, automations, or forms; we deliver an inventory of these for the customer's admin to rebuild post-migration.
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 Tango 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.
Tango CRM
Contact
Nutshell
Person
1:1Tango CRM Contact records map to Nutshell Person. We use email address as the dedupe key. Standard fields (name, email, phone, address) map to Nutshell's name, emails, phones, and addresses fields. Any custom Contact properties require explicit type-to-type mapping against Nutshell's supported field types (Text, Long Text, Currency, Date, Number, Checkbox, Dropdown, Multi-Select). Without a confirmed API on Tango CRM, extraction relies on the available export method identified during scoping.
Tango CRM
Company
Nutshell
Company
1:1Tango CRM Company records map directly to Nutshell Company. We use the company name as the dedupe key, with domain matching as a secondary resolution strategy for cases where company names vary slightly. Industry, size, and address fields map to Nutshell's standard company fields. Custom Company properties require explicit type mapping to Nutshell's equivalent field types.
Tango CRM
Deal
Nutshell
Deal
1:1Tango CRM Deal records map to Nutshell Deals. Deal name, value (amount), expected close date, and owner transfer directly. Pipeline stage names from Tango CRM do not align with Nutshell's default stage labels — we produce a stage mapping worksheet during the mapping phase and apply the reconciliation at import time. Historical deals (closed-won and closed-lost) transfer with their original close dates preserved.
Tango CRM
Pipeline
Nutshell
Pipeline (configuration)
lossyTango CRM pipeline definitions (stage order, stage labels, stage-level automation hooks) export as configuration records. Nutshell's pipeline is configurable but represents a rebuild rather than a direct import. We deliver a pipeline reconstruction worksheet with the source stage names, probabilities, and order so that the customer's admin or a Nutshell support representative configures the destination pipeline before the Deal import phase.
Tango CRM
Activities
Nutshell
Activities
1:1Emails, calls, meetings, and tasks logged against Contacts, Companies, or Deals in Tango CRM transfer as activity records in Nutshell. Activity text, timestamps, and type (call, email, meeting, task) are preserved. Without a bulk API on Tango CRM, activity extraction is sequenced to avoid timeout — we batch by date range and load incrementally. Activity records link to the parent Person, Company, or Deal via Nutshell's foreign key references.
Tango CRM
Notes
Nutshell
Notes
1:1Free-text notes attached to Contacts, Companies, or Deals migrate as Nutshell Notes. HTML-formatted notes are stripped to plain text unless the destination supports rich-text note fields. Notes are linked to the parent record (Person, Company, or Deal) via Nutshell's attachment model.
Tango CRM
Tags and Labels
Nutshell
Tags
lossyTags applied to Contacts or Deals in Tango CRM transfer as Tag values in Nutshell. Multi-select tag fields are split into individual tag values during the transformation step. Nutshell stores tags as an array property on the parent record (Person, Company, or Deal). We preserve the full tag list in a staging field for the customer to validate before finalizing.
Tango CRM
Custom Fields
Nutshell
Custom Fields
lossyCustom properties on Contacts, Companies, and Deals require explicit field-level mapping. We match each Tango CRM custom field type to the closest Nutshell equivalent: text to Text, paragraphs to Long Text, monetary fields to Currency, date fields to Date, numeric fields to Number, boolean fields to Checkbox, and single-select fields to Dropdown. Multi-select fields map to Nutshell Multi-Select. Dropdown fields require value-level mapping where the source and destination picklist values differ. We pre-create destination custom fields before the data import phase begins.
Tango CRM
Users and Owners
Nutshell
Users
1:1CRM users and record owners from Tango CRM are resolved by email address against Nutshell's user roster. Any Tango CRM owner without a matching Nutshell user account is placed in a reconciliation queue for the customer's admin to provision before record import resumes. Role and permission sets do not transfer — these are rebuilt in Nutshell post-migration.
Tango CRM
Attachments
Nutshell
None
1:1File attachments stored within Tango CRM records (uploaded documents, signed contracts, images) cannot be extracted without a confirmed API endpoint or download mechanism. We flag attachment presence during scoping and exclude them from the default migration scope to prevent silent data loss. We document the attachment inventory in a post-migration checklist so the customer's team can manually re-upload any files needed in Nutshell.
| Tango CRM | Nutshell | Compatibility | |
|---|---|---|---|
| Contact | Person1:1 | Fully supported | |
| Company | Company1:1 | Fully supported | |
| Deal | Deal1:1 | Fully supported | |
| Pipeline | Pipeline (configuration)lossy | Fully supported | |
| Activities | Activities1:1 | Mapping required | |
| Notes | Notes1:1 | Mapping required | |
| Tags and Labels | Tagslossy | Mapping required | |
| Custom Fields | Custom Fieldslossy | Mapping required | |
| Users and Owners | Users1:1 | Mapping required | |
| Attachments | None1:1 | Not 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.
Tango CRM gotchas
No public API confirmed limits automation options
Attachment extraction is unconfirmed
Pipeline stage names rarely align between CRMs
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 feasibility call
We begin every Tango CRM migration with a scoped discovery call. We identify the export methods available for each object type (CSV export, browser-based capture, manual extraction), estimate total record volumes across Contacts, Companies, Deals, Activities, and Notes, and inventory any custom fields and their data types. The discovery call also covers pipeline stage names, owner assignments, attachment presence, and any known data quality issues. The output is a written migration scope document confirming the extraction method for each object and an agreed mapping plan.
Data extraction from Tango CRM
We extract data from Tango CRM using the method identified during discovery. Where CSV export is available, we pull exports per object type and validate column headers against the mapping schema. Where browser-based capture is required, we sequence extraction by object dependency (Companies first, then Contacts with Company lookups resolved, then Deals with owner and Company references resolved, then Activities linked to the parent records). We extract in batches to avoid timeouts and store the raw extract in our staging environment with a SHA-256 checksum for integrity verification.
Data quality audit and deduplication
We audit extracted records for duplicates, missing required fields, inconsistent formatting (phone numbers, addresses, dates), and orphaned relationships (Contacts without a Company reference, Deals without an owner). We present a deduplication report to the customer with recommended merges and ask for approval before transforming records. Any unmapped custom fields are flagged for explicit mapping. This step typically adds one to three days to the timeline but prevents record rejection at the Nutshell import stage.
Schema design and Nutshell custom field creation
We design the destination schema in Nutshell. For each Tango CRM object, we map standard fields to Nutshell's equivalent fields and pre-create custom fields in Nutshell for any source custom properties that require a destination home. We configure dropdown field values for picklist fields where the source and destination picklist values differ. This step uses Nutshell's admin interface (or the API if preferred) and requires an admin-level login to the destination Nutshell account. We validate that the custom fields were created correctly before proceeding to import.
Staging migration and reconciliation
We run a test migration into a staging environment (a second Nutshell account or a sandboxed workspace) using a representative subset of data. We validate that Person, Company, Deal, Activity, and Note records appear correctly in Nutshell with the right field values, relationship links, and owner assignments. The customer spot-checks 20-30 records and signs off before we proceed to production migration. Any field mapping corrections happen at this stage.
Production migration in dependency order
We run the production migration in record-dependency order: Companies (first, as other objects reference them), Persons (with Company lookups resolved), Deals (with Person and Company references resolved), Activities (Tasks, Events linked to their parent records), and Notes (linked via Nutshell's attachment model). Owner resolution happens by email match against the Nutshell user roster — any unresolved owners are held in a reconciliation queue. We emit row-count reconciliation reports after each phase.
Cutover, validation, and inventory handoff
We freeze new writes to Tango CRM during the final cutover window, run a delta migration of any records modified during the migration window, then confirm that Nutshell is the system of record. We deliver the workflow and automation inventory (if any were identified in Tango CRM), the attachment checklist for manual re-upload, and the pipeline reconstruction worksheet. We provide a one-week hypercare window to resolve any data issues raised by the team after going live in Nutshell.
Platform deep dives
Tango CRM
Source
Strengths
Weaknesses
Nutshell
Destination
Strengths
Weaknesses
Complexity grading
Moderate CRM migration. 7 of 8 objects need a mapping; the rest are 1:1.
Overall complexity
Moderate migration
Derived from compatibility, mapping clarity, API constraints, and data volume across Tango CRM and Nutshell.
Object compatibility
7 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
Tango CRM: Not publicly documented.
Data volume sensitivity
Tango 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
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