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CRM ⇄ Accounting and finance

Kustomer to Zuora integration — real-time, two-way sync

Keep Kustomer and Zuora in sync without custom scripts. Cut weeks of integration work, eliminate silent data drift, and give your team a single, reliable source of truth.

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Adopted by fast-scaling companies moving mission-critical data in real time

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Why teams connect Kustomer and Zuora

Sync customers, invoices, and payment status between Zuora and Kustomer in real time, so sales sees the money and finance sees the relationship.

Finance and sales describe the same customers in different systems. Kustomer knows the relationship: who the contacts are and what is in motion with the account. Zuora knows the money: what was invoiced, what was paid, what is overdue. When the two are connected only by exports, each side works partly blind.

Stacksync links Payment, Usage, Order and Amendment, Account (Billing Account) in Zuora to Conversations, Messages, Companies, Custom Objects (Klasses) in Kustomer with bi-directional, real-time sync. New customers, updated billing details, invoice status, and payment activity move in whichever direction you configure, field by field, with conflicts resolved by rules you set. The result is one version of each customer, visible from both sides.

Common use cases

  • 01 Two-way sync of Accounts and Subscriptions with an operational Postgres database so product and finance teams read billing state in SQL while changes flow back into Zuora.
  • 02 Master the Product Catalog (Products and Product Rate Plans) in a database or PIM and write pricing changes into Zuora.
  • 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

Payment status on the account

Invoice and payment status from Zuora appears on the account in Kustomer, so reps see overdue balances before they promise the next order.

Billing detail changes flow back

When a contact or address is corrected in Kustomer, Zuora gets the update before the next invoice goes out.

Collections with context

Finance sees the account owner and relationship history from Kustomer when chasing a balance, and sales sees that the chase is happening.

What you can sync between Kustomer and Zuora

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 Zuora objects How this pairing syncs
Custom Objects (Klasses) Structured external records such as orders and subscriptions synced in to appear on the customer timeline. Rate Plan and Rate Plan Charge The priced components inside a Subscription; synced so charge amounts, quantities, and effective dates stay aligned with the source system. Custom Objects (Klasses) is specific to Kustomer and Rate Plan and Rate Plan Charge to Zuora — each maps to any object or custom field on the other side.
Users Agent records map conversation ownership to people in other systems. Product and Product Rate Plan (Product Catalog) The catalog of sellable products and their pricing; usually mastered elsewhere and written into Zuora, or read to map subscription charges. Users is specific to Kustomer and Product and Product Rate Plan (Product Catalog) to Zuora — each maps to any object or custom field on the other side.
Teams Team assignments support routing parity and reporting. Invoice Billing documents generated from rate plan charges and order line items; typically read out into an ERP or GL for revenue recognition and reconciliation. Teams is specific to Kustomer and Invoice to Zuora — each maps to any object or custom field on the other side.
Tags Labels on conversations and customers sync for categorization and analytics. Payment Payment and refund transactions applied against invoices; read for cash application, dunning, and reconciliation reporting in the warehouse. Tags is specific to Kustomer and Payment to Zuora — each maps to any object or custom field on the other side.
Notes Internal annotations carry context alongside synced conversations. Usage Metered consumption records; written into Zuora from a metering or warehouse pipeline so consumption-based charges are rated and invoiced. Notes is specific to Kustomer and Usage to Zuora — 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. Order and Amendment Records of subscription create and change actions; written to Zuora to drive quote-to-cash and read for subscription change history. Customers is specific to Kustomer and Order and Amendment to Zuora — each maps to any object or custom field on the other side.

How changes propagate between Kustomer and Zuora

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 Zuora 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 Zuora through its API, with automatic retries and rate-limit backoff.

Zuora Kustomer Sub-second propagation

DetectionZuora notifies Stacksync of record changes through webhook events. Incremental extraction on the indexed UpdatedDate column via ZOQL/AQuA stateful mode (high-water mark), plus Callout Notifications (webhooks) for.

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.
  • Zuora: Concurrency limits: 40 concurrent requests by default, 80 for Object Queries, 200 for high-volume operations (doubled for Performance Booster); HTTP 429 on breach with exponential backoff; OAuth token endpoint is not bound by the limit.
What ships with Kustomer ⇄ Zuora

Connect Kustomer and Zuora for flexible, real-time data sync.

Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Kustomer–Zuora connection.

Real-time

Two-way sync

Changes in Kustomer or Zuora instantly reflect in both systems. No stale data, no manual imports.

No-code + pro-code

Workflow automation

Trigger automated workflows whenever Kustomer or Zuora 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 Zuora record.

Observability

Monitoring

Track your Kustomer ⇄ Zuora 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 Zuora.

How the Kustomer and Zuora 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

Zuora

Integration surface
REST API (v1) with Object Query, Data Query, and AQuA bulk export; legacy SOAP API also available
Authentication
OAuth 2.0 client credentials (bearer token, 3600s expiry); access is governed by the Zuora role of the OAuth client's associated user, with no granular scopes
Change detection
Incremental extraction on the indexed UpdatedDate column via ZOQL/AQuA stateful mode (high-water mark), plus Callout Notifications (webhooks) for event-driven changes
Capabilities
read · write · webhooks
Rate limits
Concurrency limits: 40 concurrent requests by default, 80 for Object Queries, 200 for high-volume operations (doubled for Performance Booster); HTTP 429 on breach with exponential backoff; OAuth token endpoint is not bound by the limit.
How it works

How to connect Kustomer to Zuora — 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.

  1. 01

    Connect your apps

    Authenticate Kustomer and Zuora with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.

    • OAuth 2.0
    • SSH tunnel
    • VPC peering
    Kustomer connected
    Zuora connected
    OAuth 2.0
    SSH tunnel
    SSL certificate
    VPC peering
  2. 02

    Choose tables

    Pick the Kustomer and Zuora 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.

    • Standard objects
    • Custom objects
    • Auto-schema
    objects · Kustomer ⇄ Zuora
    Customers 12,480
    Sales Orders 8,213
    Invoices 5,902
    Items 1,344
  3. 03

    Map fields

    Fields map automatically even when names and types differ. Stacksync handles transformation and type casting for you, zero configuration required.

    • Auto-map
    • Type casting
    • Transforms
    Kustomer Zuora
    Company company_name text
    Email email text
    Amount amount numeric
    Created created_at timestamp
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FAQ

Kustomer and Zuora integration FAQ

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.

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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:

OAuth 2 SSH Tunnelling SSL certificates IP Whitelisting VPN gateway VPC peering and more

Related integrations

Every pair below is a real-time, two-way sync. Search all 413 integrations available for Kustomer and Zuora.

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