Real-time
Two-way sync
Changes in Kustomer or Salesloft instantly reflect in both systems. No stale data, no manual imports.
CRM
Kustomer to Salesloft integration — real-time, two-way sync
Keep Kustomer and Salesloft in sync without custom scripts. Cut weeks of integration work, eliminate silent data drift, and give your team a single, reliable source of truth.
- SOC 2 and 6 other compliance frameworks
- POC with real engineers in minutes
Adopted by fast-scaling companies moving mission-critical data in real time
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Migrated from MuleSoft
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Migrated from Celigo
Migrated from Heroku Connect
Migrated from Matillion
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Migrated from Fivetran
Case study
Migrated from Celigo
Why teams connect Kustomer and Salesloft
Run Kustomer and Salesloft side by side with the same accounts and contacts in both, whether they serve different teams or one is replacing the other.
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 Users, Teams, Tags, Notes in Kustomer with Custom Fields, People, Accounts, Cadences in Salesloft 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.
Common use cases
- 01 Push order and shipment records from commerce systems into Kustomer custom objects so agents answer order-status questions without switching tools
- 02 Mirror conversations and satisfaction data into a warehouse for support analytics and agent performance reporting
- 03 Keep person and account custom fields populated from an enrichment pipeline for personalization tokens.
- 04 Reconcile ownership by syncing user assignments between the CRM and Salesloft.
Common sync patterns
Migration with a parallel run
When one CRM is replacing the other, run both fully live until cutover, with no snapshot gap and no data freeze.
Divisional or regional split
Where each CRM serves a different team or region, sync just the shared accounts and contacts so handoffs and cross-sell work.
Where both track pipeline: deal visibility across systems
Deal stage and value on shared accounts stay visible from either CRM.
What you can sync between Kustomer and Salesloft
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.
| Kustomer objects | Salesloft objects | How this pairing syncs | |
|---|---|---|---|
| Users Agent records map conversation ownership to people in other systems. | Users Seller records used for ownership mapping and activity attribution. | Same entity on both sides — records pair one-to-one and field-level changes reconcile in both directions. | |
| Tags Labels on conversations and customers sync for categorization and analytics. | Meetings Booked meeting records tied to people and users. | Tags is specific to Kustomer and Meetings to Salesloft — each maps to any object or custom field on the other side. | |
| Notes Internal annotations carry context alongside synced conversations. | Custom Fields Per-person and per-account fields commonly populated by enrichment syncs for personalization. | Notes is specific to Kustomer and Custom Fields to Salesloft — each maps to any object or custom field on the other side. | |
| Customers The central record whose timeline aggregates every interaction; external attributes sync onto it. | People Prospect records with contact data and CRM ID mappings, the primary sync target. | Customers is specific to Kustomer and People to Salesloft — each maps to any object or custom field on the other side. | |
| Conversations Support threads across channels sync outward for analytics and CRM context. | Accounts Company records mirrored from the CRM for account-based workflows. | Conversations is specific to Kustomer and Accounts to Salesloft — each maps to any object or custom field on the other side. | |
| Messages Individual messages within conversations support full-thread replication. | Cadences Multi-step outreach sequences that people are enrolled in and reported on. | Messages is specific to Kustomer and Cadences to Salesloft — each maps to any object or custom field on the other side. |
How changes propagate between Kustomer and Salesloft
Each direction of the sync is driven by what the source system can signal and what the destination accepts — detection, delivery, and expected latency below.
Kustomer Salesloft Sub-second propagation
DetectionKustomer notifies Stacksync of record changes through webhook events. Outbound webhooks on record events, plus polling for backfill.
DeliveryEach detected change is written to Salesloft through its API, with automatic retries and rate-limit backoff.
Salesloft Kustomer Sub-second propagation
DetectionSalesloft notifies Stacksync of record changes through webhook events. Webhook event subscriptions plus polling on updated_at timestamps.
DeliveryEach detected change is written to Kustomer through its API, with automatic retries and rate-limit backoff.
Rate-limit considerations
- Kustomer: Subject to the platform's API rate limits.
- Salesloft: Subject to the platform's per-minute API rate limits.
What ships with Kustomer ⇄ Salesloft
Connect Kustomer and Salesloft for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Kustomer–Salesloft connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Kustomer or Salesloft data changes, update records, fire webhooks, or kick off sequences without brittle API scripts.
At scale
Event queues
Handle millions of events per minute without losing a single Kustomer or Salesloft record.
Observability
Monitoring
Track your Kustomer ⇄ Salesloft sync health, view errors, and replay failed events in one click.
Trading partners
EDI
Transform legacy EDI complexity into simple database interactions between Kustomer and Salesloft.
How the Kustomer and Salesloft connectors work
Kustomer
- Integration surface
- REST API
- Authentication
- API key used as a bearer token, scoped by role
- Change detection
- Outbound webhooks on record events, plus polling for backfill
- Capabilities
- read · write · webhooks
- Rate limits
- Subject to the platform's API rate limits
Salesloft
- Integration surface
- REST API (v2)
- Authentication
- OAuth 2.0
- Change detection
- Webhook event subscriptions plus polling on updated_at timestamps
- Capabilities
- read · write · webhooks
- Rate limits
- Subject to the platform's per-minute API rate limits
How it works
How to connect Kustomer to Salesloft — three steps, no code
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.
- 01
Connect your apps
Authenticate Kustomer and Salesloft with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.
Kustomer
connected
Salesloft
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Kustomer and Salesloft 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.
objects · Kustomer ⇄ SalesloftCustomers 12,480Sales Orders 8,213Invoices 5,902Items 1,344 - 03
Map fields
Fields map automatically even when names and types differ. Stacksync handles transformation and type casting for you, zero configuration required.
Kustomer SalesloftCompany company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Kustomer and Salesloft integration FAQ
-
Yes. Stacksync provides a managed, real-time two-way integration between Kustomer and Salesloft: authenticate both systems, choose the objects to sync (such as Kustomer's Users and Tags), map fields visually, and changes propagate both ways in milliseconds — no code required.
-
Stacksync pricing is usage-based and starts at $1,000/month, including the managed Kustomer and Salesloft connectors, real-time two-way sync, monitoring, and support. That replaces building and maintaining a custom Kustomer–Salesloft integration in-house.
-
Yes — Stacksync ships production-grade connectors for both Kustomer and Salesloft. The connectors handle authentication, schema detection, rate limits, and retries; you configure the sync, and Stacksync operates it.
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Change detection on Kustomer: Outbound webhooks on record events, plus polling for backfill. On Salesloft: Webhook event subscriptions plus polling on updated_at timestamps. Each detected change propagates to the other side in milliseconds, with field-level conflict resolution and an inspectable event log.
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On the Kustomer side: Users, Teams, Tags, Notes, plus custom fields where Kustomer exposes them. On the Salesloft side: Custom Fields, People, Accounts, Cadences. 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.
SECURITY
Security teams trust Stacksync
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.
SOC 2 Type II
ISO 27001
HIPAA BAA
GDPR
CCPA
DPF US-EU-UK-CH
→ SECURITY WITH BENEFITS
SSO & SCIM
Let your users access Stacksync from your centralized user management systems. Works with Okta, Azure, Google SSO and more.
Alerts
Immediately get alerted about record syncing issues over email, Slack, PagerDuty and WhatsApp. Resolve issues from a centralized dashboard with retry and revert options.
Secure connection options
Securely connects to your systems with:
Related integrations
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