Real-time
Two-way sync
Changes in Kustomer or Monday instantly reflect in both systems. No stale data, no manual imports.
CRM ⇄ Business productivity
Kustomer to Monday integration — real-time, two-way sync
Keep Kustomer and Monday 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
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Migrated from Celigo
Why teams connect Kustomer and Monday
Sync what happens in Monday with the customer records in Kustomer, in real time and in both directions.
The CRM is supposed to be the record of every customer relationship, but customer-relevant information also accumulates in the other tools a team runs. Whatever Monday holds or produces that touches a customer, whether conversations, payments, replies, enriched data, or notes, the CRM only benefits if it arrives without someone copying it over.
Stacksync connects Groups, Updates, Users, Workspaces in Monday to Notes, Customers, Conversations, Messages in Kustomer with bi-directional, real-time sync. Activity and record changes in Monday update the matching contact or account in Kustomer, and CRM data flows the other way wherever Monday can store and use it.
Common use cases
- 01 Sync Updates and status changes from monday.com into a database so downstream tools and dashboards react to project progress in near real time.
- 02 Two-way sync of Items and their Column values between a monday.com board and Postgres so ops teams work in SQL while project owners stay in monday.com.
- 03 Mirror conversations and satisfaction data into a warehouse for support analytics and agent performance reporting
- 04 Keep customer attributes updated from billing systems so routing rules and SLAs reflect account value
Common sync patterns
Where Monday supplies contact or company data
Enriched fields land directly on records in Kustomer, and refreshes keep them from going stale.
Where Monday can store CRM context: fields kept current
Owner, lifecycle stage, or account details from Kustomer sync into Monday, so people working there have the context without switching tools.
Where Monday handles support or shared inboxes
Tickets and conversations attach to the right contact and account in Kustomer, so sales sees open issues before the next call.
What you can sync between Kustomer and Monday
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 | Monday objects | How this pairing syncs | |
|---|---|---|---|
| Users Agent records map conversation ownership to people in other systems. | Users Account members referenced by people columns; read to resolve owner and assignee IDs to names and emails. | Same entity on both sides — records pair one-to-one and field-level changes reconcile in both directions. | |
| Custom Objects (Klasses) Structured external records such as orders and subscriptions synced in to appear on the customer timeline. | Boards Table-like containers that hold items; each board maps to a synced table, and its columns define the field mapping. | Custom Objects (Klasses) is specific to Kustomer and Boards to Monday — each maps to any object or custom field on the other side. | |
| Teams Team assignments support routing parity and reporting. | Items Rows within a board and the primary record; synced two-way and created, updated, archived, or deleted via GraphQL mutations. | Teams is specific to Kustomer and Items to Monday — each maps to any object or custom field on the other side. | |
| Tags Labels on conversations and customers sync for categorization and analytics. | Subitems Nested rows under items, stored on a separate hidden board; synced as a child table linked to the parent item. | Tags is specific to Kustomer and Subitems to Monday — each maps to any object or custom field on the other side. | |
| Notes Internal annotations carry context alongside synced conversations. | Column values Typed fields (status, date, people, numbers, connect-boards); polymorphic JSON usually written together via change_multiple_column_values. | Notes is specific to Kustomer and Column values to Monday — 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. | Groups Named sections that group items inside a board; synced as a grouping attribute or category field on the row. | Customers is specific to Kustomer and Groups to Monday — each maps to any object or custom field on the other side. |
How changes propagate between Kustomer and Monday
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 Monday 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 Monday through its API, with automatic retries and rate-limit backoff.
Monday Kustomer Sub-second propagation
DetectionMonday notifies Stacksync of record changes through webhook events. Board-scoped webhooks (create_item, change_column_value, item_deleted, and similar) for real-time events.
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.
- Monday: Complexity-budget limits: a single query caps at 5M complexity points and ~10M points/min per user token (1M on trial/free) over a sliding 60s window.
What ships with Kustomer ⇄ Monday
Connect Kustomer and Monday for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Kustomer–Monday connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Kustomer or Monday 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 Monday record.
Observability
Monitoring
Track your Kustomer ⇄ Monday 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 Monday.
How the Kustomer and Monday 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
Monday
- Integration surface
- GraphQL API (single endpoint, api.monday.com/v2)
- Authentication
- OAuth 2.0 for installed apps, or a per-user personal API token (admin/member scope); a date-based API version is sent via request header
- Change detection
- Board-scoped webhooks (create_item, change_column_value, item_deleted, and similar) for real-time events; polling falls back to the item updated_at field
- Capabilities
- read · write · webhooks
- Rate limits
- Complexity-budget limits: a single query caps at 5M complexity points and ~10M points/min per user token (1M on trial/free) over a sliding 60s window
How it works
How to connect Kustomer to Monday — 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 Monday 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
Monday
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Kustomer and Monday 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 ⇄ MondayCustomers 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 MondayCompany company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Kustomer and Monday integration FAQ
-
Yes. Stacksync provides a managed, real-time two-way integration between Kustomer and Monday: authenticate both systems, choose the objects to sync (such as Kustomer's Users and Custom Objects (Klasses)), map fields visually, and changes propagate both ways in milliseconds — no code required.
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On the Monday side: Groups, Updates, Users, Workspaces, plus custom fields where Monday exposes them. On the Kustomer side: Notes, Customers, Conversations, Messages. Stacksync auto-detects both schemas and converts types between the two systems.
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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 Kustomer and Monday: Where Monday supplies contact or company data; Where Monday can store CRM context: fields kept current; Where Monday handles support or shared inboxes. Enriched fields land directly on records in Kustomer, and refreshes keep them from going stale.
-
Kustomer: REST API. Authentication: API key used as a bearer token, scoped by role. Monday: GraphQL API (single endpoint, api.monday.com/v2). Authentication: OAuth 2.0 for installed apps, or a per-user personal API token (admin/member scope); a date-based API version is sent via request header. Stacksync manages authentication, retries, and rate limits on both sides.
-
Monday: Rate limiting is complexity-based, not request-count based: each query has a complexity cost capped at 5M per call and ~10M per minute per user token (1M on trial/free). Kustomer: Custom object types are called Klasses, and they are the standard mechanism for landing external data like orders and subscriptions where agents work. Stacksync's field mapping accounts for these differences between Kustomer and Monday without custom code.
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
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 423 integrations available for Kustomer and Monday.
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Monday ⇄ SAP Sales Cloud -
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Monday ⇄ Twenty CRM
No integrations match .
