CRM migration
Field-level mapping, validation, and rollback between Affinity Fieldreach and Nutshell. We move data and schema; workflows are rebuilt natively in Nutshell.
Affinity Fieldreach
Source
Nutshell
Destination
Compatibility
12 of 12
objects map 1:1 between Affinity Fieldreach and Nutshell.
Complexity
BStandard
Timeline
48–72 hours
Overview
Affinity Fieldreach models its CRM around Persons, Organizations, Opportunities, and a rich set of relationship-strength indicators designed for venture capital and private equity deal-sourcing workflows. Nutshell uses a simpler three-entity model: Contacts (People), Accounts (Companies), and Leads, with pipeline stages tracked as Milestones within a single pipeline view. The migration carries every standard Affinity Fieldreach object into its Nutshell equivalent — Persons map to Contacts, Organizations map to Accounts, Opportunities map to Leads — while Affinity's custom fields migrate as Nutshell custom fields on the corresponding entity. Affinity relationship-strength scores have no Nutshell equivalent and are preserved as a read-only custom field for reference. FlitStack sequences the migration using Affinity's REST API (v1 endpoint at api.affinity.co) and Nutshell's JSON-RPC API (app.nutshell.com/api/v1/json), respecting both platforms' rate limits during extraction and load. Workflows, automations, and webhooks in Affinity Fieldreach do not migrate — FlitStack exports those definitions as a structured JSON file so your Nutshell admin can rebuild them in Nutshell's automation tools. A delta-pickup window of 24–48 hours captures any Affinity records modified during the cutover window.
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 Affinity Fieldreach 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.
Affinity Fieldreach
Person
Nutshell
Contact (People)
1:1Affinity Person maps 1:1 to Nutshell Contact (internally called 'People' in the UI, 'Contact' in the API). FlitStack preserves the Person's original create date as a custom datetime field since Nutshell's createdate is set at migration time. All standard Person fields (name, email, phone, title, address) map directly.
Affinity Fieldreach
Organization
Nutshell
Account (Company)
1:1Affinity Organization maps 1:1 to Nutshell Account (called 'Company' in the Nutshell UI, 'Account' in the API). Organization name, domain/website, industry, and employee count fields map directly. Nutshell's Account API field name is 'name' for company name — FlitStack resolves this during the field mapping phase. Parent-child organization hierarchies in Affinity map to Nutshell's parent Account field if configured.
Affinity Fieldreach
Opportunity
Nutshell
Lead
1:1Affinity Opportunity maps to Nutshell Lead, not to a deal or opportunity object — Nutshell does not have a separate Opportunity object at the CRM level. Deal amount, expected close date, and deal name migrate as Lead custom fields in Nutshell. Affinity's opportunity stage values are mapped to Nutshell's Milestone (stage) values; if multiple Affinity pipelines exist, FlitStack maps them to a single Nutshell pipeline with stage filtering handled via a Pipeline custom field on the Lead record.
Affinity Fieldreach
Custom Field (Person-level)
Nutshell
Custom Field (Contact)
1:1Affinity global custom fields at the Person level migrate to Nutshell Contact custom fields. FlitStack creates the Nutshell custom field using the same field type (text, number, date, picklist) inferred from the Affinity field definition. Multi-select picklist fields in Affinity become Nutshell multi-value custom fields where supported, or comma-separated text as a fallback.
Affinity Fieldreach
Custom Field (Organization-level)
Nutshell
Custom Field (Account)
1:1Affinity Organization custom fields map to Nutshell Account custom fields. The same type-inference logic applies: text to text, number to number, date to date, picklist to picklist. Nutshell's custom field creation API requires the field key name — FlitStack generates a URL-safe key from the Affinity field label (e.g., 'Customer Tier' becomes 'customer_tier').
Affinity Fieldreach
Custom Field (Opportunity-level)
Nutshell
Custom Field (Lead)
1:1Affinity Opportunity custom fields map to Nutshell Lead custom fields. Because Nutshell Lead is the target for all opportunity data, opportunity-level custom fields are appended to the Lead record alongside the transformed deal amount and close date fields. FlitStack surfaces the full list of Affinity opportunity custom fields in the pre-migration mapping plan.
Affinity Fieldreach
Interaction
Nutshell
Activity
1:1Affinity Interactions (calls, emails, meetings logged against a Person or Organization) map to Nutshell Activities. Each Interaction type (call, email, meeting) maps to the corresponding Nutshell Activity type. Original timestamps and owner assignment are preserved. Affinity Interaction notes content migrates as the Activity description field in Nutshell.
Affinity Fieldreach
Note
Nutshell
Note
1:1Affinity Notes attached to Persons, Organizations, or Opportunities map to Nutshell Notes. The note body, create date, and owning user are preserved. Nutshell Notes are linked to a parent entity (Contact, Account, or Lead) via the standard Nutshell note association model.
Affinity Fieldreach
List
Nutshell
Tag
1:1Affinity List entries (static lists of Persons or Organizations) map to Nutshell Tags. Each List name becomes a Tag name in Nutshell. If an Affinity List is dynamic (auto-populated by filter rules), FlitStack exports the list definition as a JSON specification so your Nutshell admin can recreate equivalent filtered views or static tag groups in Nutshell.
Affinity Fieldreach
Relationship Strength
Nutshell
Custom Field (Contact)
1:1Affinity relationship_strength scores are unique to Affinity's deal-sourcing model and have no Nutshell equivalent. FlitStack migrates the relationship_strength numeric value as a read-only custom field (Relationship_Strength__c) on the Nutshell Contact record for historical reference. This field is not actively used in Nutshell workflows but preserves the data for audit purposes.
Affinity Fieldreach
Entity File
Nutshell
Attachment (Contact/Account)
1:1Affinity Entity Files attached to Persons, Organizations, or Opportunities are re-uploaded to Nutshell as file attachments on the corresponding Contact, Account, or Lead record. Nutshell stores attachments inline with the record. File size limits in Nutshell apply — files exceeding 25MB are flagged in the migration report for manual handling.
Affinity Fieldreach
Webhook / Automation
Nutshell
Not Available
1:1Affinity Fieldreach automations and webhooks do not have a direct Nutshell equivalent. FlitStack exports the automation definition as a structured JSON file including trigger conditions, action steps, and field references. Your Nutshell admin uses this export as a rebuild specification for Nutshell's built-in automation tools (sequences and workflow rules). The data migration does not include automation logic by design.
| Affinity Fieldreach | Nutshell | Compatibility | |
|---|---|---|---|
| Person | Contact (People)1:1 | Fully supported | |
| Organization | Account (Company)1:1 | Fully supported | |
| Opportunity | Lead1:1 | Fully supported | |
| Custom Field (Person-level) | Custom Field (Contact)1:1 | Fully supported | |
| Custom Field (Organization-level) | Custom Field (Account)1:1 | Fully supported | |
| Custom Field (Opportunity-level) | Custom Field (Lead)1:1 | Fully supported | |
| Interaction | Activity1:1 | Fully supported | |
| Note | Note1:1 | Fully supported | |
| List | Tag1:1 | Fully supported | |
| Relationship Strength | Custom Field (Contact)1:1 | Fully supported | |
| Entity File | Attachment (Contact/Account)1:1 | Fully supported | |
| Webhook / Automation | Not Available1:1 | 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.
Affinity Fieldreach gotchas
v2 API is not at feature parity with v1
Rate limits constrain bulk export windows
Custom fields silently truncated in third-party integrations
Choice field types are immutable after creation
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
Inventory Affinity entities and custom field definitions
FlitStack connects to the Affinity API using credentials scoped to read access. We enumerate all Person, Organization, Opportunity, Interaction, Note, and List records, plus all global custom field definitions including field type, required flags, and pick-list values. This inventory produces a schema map that is the basis for the Nutshell custom field creation plan. We also identify any Affinity automations and webhooks so their definitions can be exported as a rebuild reference before data moves.
Create Nutshell custom fields and prepare the schema
Before data is loaded, FlitStack creates all required Nutshell custom fields on the Contact, Account, and Lead objects using the Nutshell API. This includes the deal amount field, expected close date field, pipeline source tag field, original create date fields, and any Affinity custom fields that lack direct Nutshell equivalents. If multiple Affinity pipelines exist, we coordinate with your team to confirm the consolidation strategy and apply the pipeline tagging rule before any Lead records are created.
Run a sample migration with field-level diff
A representative slice of records — typically 100–500 spanning Contacts, Accounts, Leads, and a sample of Activities — migrates first. FlitStack generates a field-level diff comparing source Affinity values against the migrated Nutshell records so your team can verify that Person name fields, Organization domain mappings, Opportunity stage-to-Milestone value mapping, and custom field translations all look correct before the full run commits. Owner resolution (email-to-Nutshell-user matching) is validated in this phase, and any unmatched owners are flagged for your team to resolve.
Execute the full migration with owner resolution and relationship preservation
The full data set migrates in dependency order: Accounts first (since Contacts link to them via account_id), then Contacts, then Leads, then Activities and Notes. Affinity Lists are translated to Nutshell Tags and applied to the corresponding Contact or Account records at this stage. Entity file attachments are re-uploaded to Nutshell as record attachments. Owner assignment resolves Affinity owner_id values to Nutshell user IDs by email match. Any records that fail validation (missing required fields, unresolved lookups) are collected in an exception report for your team to review before the delta phase begins.
Delta-pickup window and final audit
A 24–48 hour delta window captures any Affinity records created or modified during the cutover period. FlitStack re-runs the migration delta against Nutshell using source_system_id matching to avoid duplicates. After the delta phase closes, FlitStack generates a final audit log showing record counts by entity type, any records that could not be migrated, and the total delta volume absorbed. One-click rollback is available within 72 hours of go-live if reconciliation reveals unexpected gaps in the migrated data.
Platform deep dives
Affinity Fieldreach
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 Affinity Fieldreach 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
Affinity Fieldreach: Per-minute request limit + per-month account cap + concurrent request limit; exact thresholds vary by plan.
Data volume sensitivity
Affinity Fieldreach 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
Answers to the questions buyers ask most during Affinity Fieldreach to Nutshell migration scoping. Not seeing yours? Book a call.
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