Real-time
Two-way sync
Changes in Affinity or Kustomer instantly reflect in both systems. No stale data, no manual imports.
CRM
Affinity to Kustomer integration — real-time, two-way sync
Keep Affinity and Kustomer 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
Case study
Migrated from Mulesoft
Case study
Migrated from Celigo
Migrated from Heroku Connect
Migrated from Matillion
Case study
Migrated from Fivetran
Case study
Migrated from Celigo
Why teams connect Affinity and Kustomer
Run Affinity and Kustomer 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 Field Values, Notes, Interactions, Reminders in Affinity with Conversations, Messages, Companies, Custom Objects (Klasses) in Kustomer 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
- Sync notes and reminders into project or task systems used outside the deal team.
- Mirror deal-flow lists into a warehouse or BI tool for pipeline and portfolio reporting.
- Push order and shipment records from commerce systems into Kustomer custom objects so agents answer order-status questions without switching tools
- Mirror conversations and satisfaction data into a warehouse for support analytics and agent performance reporting
Post-acquisition consolidation
Keep both CRMs accurate while the merged team decides on a target system, instead of freezing one and losing months of updates.
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.
What you can sync between Affinity and Kustomer
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.
| Affinity objects | Kustomer objects | |
|---|---|---|
| Interactions Automatically captured emails and meetings, read for activity reporting. | Notes Internal annotations carry context alongside synced conversations. | |
| Reminders Follow-up tasks associated with people and organizations. | Customers The central record whose timeline aggregates every interaction; external attributes sync onto it. | |
| Lists Pipelines (deal flow, fundraising, portfolio) that structure most Affinity data; syncs usually target a specific list. | Conversations Support threads across channels sync outward for analytics and CRM context. | |
| List Entries The membership of a person, organization, or opportunity on a list, carrying its list-specific fields. | Messages Individual messages within conversations support full-thread replication. | |
| Persons Contact records enriched with relationship intelligence, synced with CRMs and outreach tools. | Companies Organization records group customers and map to CRM accounts. | |
| Organizations Company records matched to accounts in other systems by domain. | Custom Objects (Klasses) Structured external records such as orders and subscriptions synced in to appear on the customer timeline. |
What ships with Affinity ⇄ Kustomer
Connect Affinity and Kustomer for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Affinity–Kustomer connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Affinity or Kustomer 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 Affinity or Kustomer record.
Observability
Monitoring
Track your Affinity ⇄ Kustomer sync health, view errors, and replay failed events in one click.
Trading partners
EDI
Transform legacy EDI complexity into simple database interactions between Affinity and Kustomer.
How the Affinity and Kustomer connectors work
Affinity
- Integration surface
- REST API
- Authentication
- API key
- Change detection
- Webhook subscriptions for record events, supplemented by polling
- Capabilities
- read · write · webhooks
- Rate limits
- Subject to the platform's published API rate limits
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
How it works
How to connect Affinity to Kustomer — 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 Affinity and Kustomer with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.
Affinity
connected
Kustomer
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Affinity and Kustomer 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 · Affinity ⇄ KustomerCustomers 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.
Affinity KustomerCompany company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Affinity and Kustomer integration FAQ
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Yes. Stacksync provides a managed, real-time two-way integration between Affinity and Kustomer: authenticate both systems, choose the objects to sync (such as Affinity's Interactions and Reminders), map fields visually, and changes propagate both ways in milliseconds — no code required.
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Common patterns for Affinity and Kustomer: Post-acquisition consolidation; Migration with a parallel run; Divisional or regional split. Keep both CRMs accurate while the merged team decides on a target system, instead of freezing one and losing months of updates.
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Affinity: REST API. Authentication: API key. Kustomer: REST API. Authentication: API key used as a bearer token, scoped by role. Stacksync manages authentication, retries, and rate limits on both sides.
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Affinity: Affinity captures email and calendar interactions automatically, so much of its activity data is generated rather than manually entered. Kustomer: API keys are issued as role-scoped bearer tokens, so integration access can be limited to the specific object types a sync touches. Stacksync's field mapping accounts for these differences between Affinity and Kustomer without custom code.
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Stacksync is SOC 2 Type II and ISO 27001 certified with HIPAA BAA support. Data is encrypted in transit, and a zero-persistent-storage architecture means Affinity and Kustomer records are not retained after a sync operation.
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Stacksync pricing is usage-based and starts at $1,000/month, including the managed Affinity and Kustomer connectors, real-time two-way sync, monitoring, and support. That replaces building and maintaining a custom Affinity–Kustomer integration in-house.
SECURITY
Security teams love 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
CSA STAR
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
Every pair below is a real-time, two-way sync. Search all 386 integrations available for Affinity and Kustomer.
Popular · 8 of 386
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Affinity ⇄ Outreach -
Affinity ⇄ Salesloft -
Affinity ⇄ Salesmate -
Affinity ⇄ SAP Sales Cloud -
Kustomer ⇄ Shopify -
Kustomer ⇄ 6sense -
Kustomer ⇄ Apollo.io -
Kustomer ⇄ Clearbit
No integrations match .
