Two-way sync
Changes in Copper CRM or Marketo instantly reflect in both systems. No stale data, no manual imports.
Keep Copper CRM and Marketo in sync without custom scripts. Cut weeks of integration work, eliminate silent data drift, and give your team a single, reliable source of truth.
Copper CRM owns the customer relationship and the pipeline; Marketo runs the campaigns, audiences, and outreach that fill it. The two overlap on the same people and companies — a lead in one system is a subscriber, a segment member, an event registrant, or an ad audience in the other. When that overlap is bridged by CSV exports or a nightly job, sales works from lists that no longer match reality and marketing keeps targeting people whose status has already moved on.
Stacksync syncs Activities, Tasks, Projects, Pipelines in Copper CRM with Custom Objects, Activities and Lead Changes, Static Lists, Programs and Program Members in Marketo field by field, in real time, and in both directions. You decide which system owns which fields — Copper CRM can own account and opportunity status while Marketo owns engagement and campaign membership — and Stacksync keeps every copy consistent and resolves conflicts by rules you set.
New leads or responders captured in Marketo flow into Copper CRM assigned and deduplicated, so nothing sits in a marketing list waiting for someone to export it.
When a contact or lead is created or edited in either system, the matching record appears or updates in the other, so campaigns reach real people and reps see who is already being marketed to.
Opens, clicks, form fills, event attendance, or ad responses recorded in Marketo post back to the contact or account in Copper CRM, so reps see interest before they reach out.
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.
| Copper CRM objects | Marketo objects | How this pairing syncs | |
|---|---|---|---|
| Companies Organization records linked to people and opportunities. | Companies Company records linked to Leads via a company link field; read and upserted through /rest/v1/companies.json, typically mastered in a CRM or ERP and written into Marketo for account context. | Same entity on both sides — records pair one-to-one and field-level changes reconcile in both directions. | |
| Leads Unqualified prospects kept separate from People until converted. | Leads Core person records (called Leads/People), deduped on email address by default or a configured dedupe field; read via GET /rest/v1/leads.json with a filterType, upserted via POST /rest/v1/leads.json (action createOrUpdate/createOnly/updateOnly), bulk-imported via CSV through POST /bulk/v1/leads.json, and bulk-exported via /bulk/v1/leads/export/create.json. | Same entity on both sides — records pair one-to-one and field-level changes reconcile in both directions. | |
| Opportunities Deals tracked through pipelines and stages; synced for revenue reporting. | Activities and Lead Changes Engagement feed (opens, clicks, form fills, Data Value Changes) read via GET /rest/v1/activities.json using a paging token from /rest/v1/activities/pagingtoken.json (sinceDatetime), plus Get Lead Changes and Get Deleted Leads; read-only, also available via async Bulk Activity Extract. | Opportunities is specific to Copper CRM and Activities and Lead Changes to Marketo — each maps to any object or custom field on the other side. | |
| Activities Logged emails, calls, meetings, and notes attached to records. | Static Lists Named static lists; read via /rest/v1/lists.json, with Leads added or removed via POST and DELETE on /rest/v1/lists/{listId}/leads.json to control campaign membership from lifecycle logic computed downstream. | Activities is specific to Copper CRM and Static Lists to Marketo — each maps to any object or custom field on the other side. | |
| Tasks To-dos with due dates and assignees, usable in workload syncs. | Programs and Program Members Marketing programs read via /rest/v1/programs.json; program membership and member status managed via /rest/v1/leads/programs/{programId}.json and the program status endpoint for acquisition and attribution reporting. | Tasks is specific to Copper CRM and Programs and Program Members to Marketo — each maps to any object or custom field on the other side. | |
| Projects Post-sale work records Copper offers alongside classic CRM objects. | Smart Campaigns Automation flows read via /rest/v1/campaigns.json and run against a set of Leads by requesting a trigger campaign with POST /rest/v1/campaigns/{id}/trigger.json, so downstream logic can push Leads into a Marketo flow. | Projects is specific to Copper CRM and Smart Campaigns to Marketo — each maps to any object or custom field on the other side. |
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.
DetectionCopper CRM notifies Stacksync of record changes through webhook events. Webhook subscriptions for record create/update/delete events.
DeliveryEach detected change is written to Marketo through its API, with automatic retries and rate-limit backoff.
DetectionStacksync polls Marketo for changes on an incremental schedule, reading only records changed since the previous pass. Polling: Get Lead Changes and Get Lead Activities from a paging token seeded by a sinceDatetime, plus Get Deleted Leads, or Bulk Extract filtered on.
DeliveryEach detected change is written to Copper CRM through its API, with automatic retries and rate-limit backoff.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Copper CRM–Marketo connection.
Changes in Copper CRM or Marketo instantly reflect in both systems. No stale data, no manual imports.
Trigger automated workflows whenever Copper CRM or Marketo data changes, update records, fire webhooks, or kick off sequences without brittle API scripts.
Handle millions of events per minute without losing a single Copper CRM or Marketo record.
Track your Copper CRM ⇄ Marketo sync health, view errors, and replay failed events in one click.
Transform legacy EDI complexity into simple database interactions between Copper CRM and Marketo.
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 Copper CRM and Marketo 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 Copper CRM and Marketo 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 Copper CRM and Marketo: authenticate both systems, choose the objects to sync (such as Copper CRM's Companies and Leads), map fields visually, and changes propagate both ways in milliseconds — no code required.
Change detection on Copper CRM: Webhook subscriptions for record create/update/delete events; polling as fallback. On Marketo: Polling: Get Lead Changes and Get Lead Activities from a paging token seeded by a sinceDatetime, plus Get Deleted Leads, or Bulk Extract filtered on createdAt/updatedAt. Marketo's Webhooks are Smart Campaign flow-step outbound HTTP calls to a URL, not a general record-change subscription, so there is no push feed of arbitrary CRUD. Each detected change propagates to the other side in milliseconds, with field-level conflict resolution and an inspectable event log.
On the Copper CRM side: Activities, Tasks, Projects, Pipelines, plus custom fields where Copper CRM exposes them. On the Marketo side: Custom Objects, Activities and Lead Changes, Static Lists, Programs and Program Members. 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 Copper CRM and Marketo: Where Marketo generates leads: hand-off without re-keying; New and updated people stay in step; Where Marketo captures engagement: activity lands on the record. New leads or responders captured in Marketo flow into Copper CRM assigned and deduplicated, so nothing sits in a marketing list waiting for someone to export it.
Copper CRM: REST API. Authentication: API key paired with the requesting user's email address, sent as request headers. Marketo: Marketo REST API (JSON over HTTPS) for Leads, Companies, Opportunities, Custom Objects, Activities, Lists, Programs, and Campaigns, plus an asynchronous Bulk Import (leads) and Bulk Extract (leads/activities/program members/custom objects) API and an Asset REST API for emails, forms, and landing pages. Authentication: OAuth 2.0 client_credentials (2-legged): GET the Identity URL /oauth/token?grant_type=client_credentials with a Custom Service client_id and client_secret to receive an access token valid for 3600 seconds, then send it as Authorization: Bearer on each call. The instance base URL is https://{munchkinId}.mktorest.com; passing the token as an access_token query parameter is deprecated (removal July 31, 2026). Stacksync manages authentication, retries, and rate limits on both sides.
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 486 integrations available for Copper CRM and Marketo.