Two-way sync
Changes in Close or Nutshell instantly reflect in both systems. No stale data, no manual imports.
Keep Close and Nutshell in sync without custom scripts. Cut weeks of integration work, eliminate silent data drift, and give your team a single, reliable source of truth.
Two CRMs in one company is more common than anyone plans for: an acquisition brings its own system, regions or business units standardize differently, or a migration is under way and both are live. In every case, some of the same companies and people exist in both systems, and every day of manual double entry pushes the copies further apart.
Stacksync syncs Custom Activities, Custom Fields, Users, Smart Views in Close with Companies, Activities, Tasks, Notes in Nutshell in real time and in both directions, with field-level mapping and matching on identifiers you choose. Update a record in either CRM and the other reflects it within seconds.
When one CRM is replacing the other, run both fully live until cutover, with no snapshot gap and no data freeze.
Where each CRM serves a different team or region, sync just the shared accounts and contacts so handoffs and cross-sell work.
Deal stage and value on shared accounts stay visible from either CRM.
Representative objects on each side — any object or custom field can map to any target. Schemas are auto-detected; types are converted between the two systems.
| Close objects | Nutshell objects | |
|---|---|---|
| Leads The top-level record in Close; represents a company and holds its contacts, opportunities, and activity history. | Leads Nutshell's deal object; synced as the pipeline record linked to people and companies | |
| Contacts People nested under a lead, with emails and phone numbers used for outreach syncs. | People Individual contacts, kept consistent with marketing and outreach tools | |
| Opportunities Deal records with value, confidence, and status; commonly synced to reporting and billing systems. | Companies Account records that group people and leads for account-level syncs | |
| Activities Calls, emails, SMS, notes, and meetings logged against a lead; the source for engagement analytics. | Activities Logged calls, meetings, and emails used for engagement reporting | |
| Tasks Follow-up items assigned to users; synced for workload and SLA reporting. | Tasks Rep to-dos mirrored into external work-management or reporting systems | |
| Custom Activities User-defined activity types with their own custom fields, mapped like standard activities. | Notes Free-text history attached to leads and contacts, replicated for a full timeline |
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Close–Nutshell connection.
Changes in Close or Nutshell instantly reflect in both systems. No stale data, no manual imports.
Trigger automated workflows whenever Close or Nutshell data changes, update records, fire webhooks, or kick off sequences without brittle API scripts.
Handle millions of events per minute without losing a single Close or Nutshell record.
Track your Close ⇄ Nutshell sync health, view errors, and replay failed events in one click.
Transform legacy EDI complexity into simple database interactions between Close and Nutshell.
Configure and sync within minutes, no code. Whether you sync 50k or 100M+ records, Stacksync handles the queues, infra, and plumbing. Integrations are non-invasive and need zero setup on your systems.
Authenticate Close and Nutshell with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.
Pick the Close and Nutshell objects to sync — Stacksync auto-detects both schemas, including custom fields where the platform exposes them. Sync to existing tables, or let Stacksync create new ones with ideal data types.
Fields map automatically even when names and types differ. Stacksync handles transformation and type casting for you, zero configuration required.
Yes. Stacksync provides a managed, real-time two-way integration between Close and Nutshell: authenticate both systems, choose the objects to sync (such as Close's Leads and Contacts), map fields visually, and changes propagate both ways in milliseconds — no code required.
On the Close side: Custom Activities, Custom Fields, Users, Smart Views, plus custom fields where Close exposes them. On the Nutshell side: Companies, Activities, Tasks, Notes. Stacksync auto-detects both schemas and converts types between the two systems.
Yes. Each object mapping can be bidirectional or restricted to a single direction (both systems accept writes). Read-only mirrors, one-way pushes, and full two-way sync can be mixed in the same integration.
Common patterns for Close and Nutshell: Migration with a parallel run; Divisional or regional split; Where both track pipeline: deal visibility across systems. When one CRM is replacing the other, run both fully live until cutover, with no snapshot gap and no data freeze.
Close: REST API. Authentication: API key (sent via HTTP Basic auth). Nutshell: JSON-RPC API over HTTPS; a newer REST API is also offered. Authentication: HTTP Basic with account email and API key. Stacksync manages authentication, retries, and rate limits on both sides.
Close: Calling, SMS, and email are native activity types, so communication history is available through the same API as CRM records rather than a separate telephony integration. Nutshell: Nutshell's most full-featured API is JSON-RPC: each call names a method such as findLeads or editLead instead of hitting resource URLs, though a newer REST API is also available. Stacksync's field mapping accounts for these differences between Close and Nutshell without custom code.
As a data company, we understand the importance of keeping your data secure. Stacksync is built with security best practices to keep your data safe at every layer, and is DPF-certified for US, EU, UK and CH data transfers.
Let your users access Stacksync from your centralized user management systems. Works with Okta, Azure, Google SSO and more.
Immediately get alerted about record syncing issues over email, Slack, PagerDuty and WhatsApp. Resolve issues from a centralized dashboard with retry and revert options.
Securely connects to your systems with:
Every pair below is a real-time, two-way sync. Search all 386 integrations available for Close and Nutshell.