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Campaign Monitor Integration Guide
Connect Campaign Monitor with enterprise systems through its REST API, selected subscriber webhooks, bulk imports, and scheduled synchronization workflows.
Campaign Monitor integration options at a glance
Campaign Monitor’s primary integration mechanism is its versioned REST API for clients, lists, subscribers, campaigns, templates, segments, and reports. Selected list and subscriber events can be delivered through Campaign Monitor webhooks, while subscriber import operations support larger audience updates. API-key authentication is suited to controlled server-to-server integrations, and OAuth supports user-authorized applications. Martini can consume these interfaces from workflows, expose internal APIs that standardize Campaign Monitor operations, map custom fields and consent data, schedule incremental report retrieval, and apply validation, retry, checkpoint, and reconciliation logic across connected systems.
| Integration point | Supported by Campaign Monitor? | Common use cases | How Martini supports it |
|---|---|---|---|
| REST APIs | Yes | Campaign Monitor’s primary interface supports clients, lists, subscribers, campaigns, templates, segments, and reports. Integrations can create, update, retrieve, and remove supported resources. | Martini can consume the Campaign Monitor REST API from workflows, map request and response data, expose reusable internal APIs, and handle validation and errors. |
| Webhooks / outbound callbacks | Limited | Campaign Monitor supports selected list and subscriber notifications, including subscribed, unsubscribed, deactivated, and updated events where configured. Coverage does not represent every campaign or report event. | Martini can expose a secured REST API endpoint to receive notifications, validate payloads, trigger workflows, and route changes to CRM, databases, or other systems. |
| Bulk / async / batch APIs | Limited | Subscriber import operations support adding or updating multiple subscribers in a request, making them suitable for migrations and larger audience synchronization. | Martini can prepare validated batches, call the subscriber import endpoint, process response outcomes, and make retries safe through normalized email and list keys. |
| Authentication | Yes | Campaign Monitor documents API-key authentication through HTTP Basic Authentication and OAuth for user-authorized applications. | Martini can store API keys and OAuth configuration in secrets or protected environment configuration and apply the selected authentication method to outbound API calls. |
| Reports and incremental retrieval | Yes | Campaign Monitor exposes campaign and engagement reporting data, including opens, clicks, bounces, and unsubscribes. Large result sets should be retrieved incrementally where supported. | Martini can schedule report workflows, paginate responses, transform engagement data, and persist campaign identifiers or synchronization checkpoints. |
| Database / analytics access | Limited | Reporting and engagement data are available through Campaign Monitor API endpoints, but direct customer database access is not provided. | Martini can retrieve report data through the API and write normalized results to a SQL database or analytics destination using a workflow. |
| File / attachment APIs | Not confirmed | No general-purpose Campaign Monitor file-transfer or attachment API was confirmed in the reviewed materials. | Martini can use separately supported storage or file-transfer endpoints when needed, then send relevant campaign or subscriber data to Campaign Monitor through documented API operations. |
| GraphQL APIs | Not confirmed | No official Campaign Monitor GraphQL API documentation was confirmed; new integrations should use the REST API. | Martini can consume GraphQL services when a connected system provides them, but Campaign Monitor integrations should be designed around the confirmed REST API. |
How Campaign Monitor exposes data and business events
Campaign Monitor REST APIs
Campaign Monitor’s versioned REST API is the primary interface for retrieving clients and lists, managing subscribers, creating campaigns, working with templates and segments where supported, and retrieving reports. Endpoint availability and behavior depend on the Campaign Monitor product surface and account context.
Martini implementation pattern
Martini implementation pattern: a workflow or Martini API authenticates to Campaign Monitor, calls the required endpoint, validates the response, maps Campaign Monitor objects to an internal or target model, and applies business rules before writing downstream data or returning a response.
Implementation sequence
Campaign Monitor Webhooks
Campaign Monitor supports webhook notifications for selected list and subscriber events, such as subscription, unsubscribe, deactivation, and update events where configured. Webhooks do not provide complete notification coverage for every campaign, report, or account event.
Martini implementation pattern
Martini implementation pattern: expose a secured Martini REST API for Campaign Monitor notifications, validate the request, acknowledge it promptly, and hand off processing to a workflow that updates a CRM, consent store, or database. Scheduled reconciliation supplements event-specific coverage.
Implementation sequence
Campaign Monitor Subscriber Imports
Campaign Monitor provides subscriber import operations for adding or updating multiple subscribers in a request. This is useful for audience migration and larger list synchronization, but it is not confirmed as a general-purpose bulk interface for every Campaign Monitor resource.
Martini implementation pattern
Martini implementation pattern: collect source contacts, normalize and validate them in a workflow, map list-specific custom fields, submit controlled batches to Campaign Monitor, and persist rejected items and batch outcomes for safe reprocessing.
Implementation sequence
Campaign Monitor Reports
Campaign Monitor report endpoints provide delivery and engagement information, including opens, clicks, bounces, unsubscribes, and related activity. Large result sets should be retrieved incrementally where endpoint filtering and paging support it.
Martini implementation pattern
Martini implementation pattern: a scheduled workflow retrieves campaigns and report data, follows endpoint-specific pagination, transforms the response into a warehouse or analytics model, and stores campaign and time-based checkpoints for restartable processing.
Implementation sequence
Common Campaign Monitor integration patterns
Pattern 1: Synchronize customers to Campaign Monitor lists
When to use this pattern
Use this pattern when Salesforce, Shopify, HubSpot, Zendesk, or another source system owns customer information and Campaign Monitor is used for consented email audiences. The workflow should distinguish active contacts from unsubscribed or deactivated subscribers and preserve the agreed system of record for consent.
Integration direction
Example Mapping
| Campaign Monitor Field | Canonical Field | Target Field |
|---|---|---|
| EmailAddress | EmailAddress | |
| Name | first_name | Name |
| CustomFields.MarketingConsent | marketing_consent | Consent custom field |
| ContactId | source_contact_id | Custom field |
Martini implementation pattern
A scheduled Martini workflow retrieves changed or eligible contacts, normalizes email addresses, validates consent, maps list-specific custom fields, and performs idempotent subscriber updates or imports. Business rules prevent automatic resubscription, while transient failures are retried with bounded backoff and permanent validation failures are routed for review.
Martini capabilities used
- workflows
- API consumption
- data mapping
- business rules
- scheduled execution
- error handling
Pattern 2: Process subscriber events into customer systems
When to use this pattern
Use this pattern when Campaign Monitor subscription, unsubscribe, deactivation, or update notifications must update a CRM, consent store, or internal database. Because webhook coverage is selective, use a reconciliation workflow for complete consistency.
Integration direction
Example Mapping
| Campaign Monitor Field | Canonical Field | Target Field |
|---|---|---|
| ListID | audience_id | Campaign list identifier |
| EmailAddress | Contact email | |
| EventType | subscription_status_event | Marketing preference event |
| SubscriberID | external_subscriber_id | Campaign Monitor subscriber key |
Martini implementation pattern
A Martini API receives the notification and triggers a workflow that validates the payload, deduplicates using event and subscriber keys, maps the event to the target preference model, and updates Salesforce or an internal database. Duplicate and out-of-order events are handled through stored processing state, and scheduled API reads reconcile missed notifications.
Martini capabilities used
- API exposure
- webhook consumption
- workflows
- data mapping
- idempotency controls
- monitoring
Pattern 3: Load Campaign Monitor reports into a data warehouse
When to use this pattern
Use this pattern when campaign delivery and engagement metrics need to be combined with customer, sales, or operational reporting. It is suited to scheduled retrieval of campaign reports where webhook notifications do not provide sufficient coverage.
Integration direction
Example Mapping
| Campaign Monitor Field | Canonical Field | Target Field |
|---|---|---|
| CampaignID | campaign_id | campaign_id |
| Recipients | recipient_count | recipient_count |
| UniqueOpens | unique_open_count | unique_open_count |
| Bounces | bounce_count | bounce_count |
Martini implementation pattern
A scheduled Martini workflow retrieves campaigns and report pages, transforms Campaign Monitor metrics into a stable warehouse model, enriches rows with internal campaign metadata where available, and writes them to a SQL database. Campaign identifiers and page checkpoints support restartability, while failed pages are retried without reprocessing completed pages.
Martini capabilities used
- scheduled workflows
- API consumption
- pagination handling
- data transformation
- database connectivity
- checkpointing
- error handling
Pattern 4: Expose an internal campaign creation API
When to use this pattern
Use this pattern when order, event, customer-service, or other internal applications need to request Campaign Monitor campaigns without implementing Campaign Monitor authentication and endpoint behavior themselves.
Integration direction
Example Mapping
| Campaign Monitor Field | Canonical Field | Target Field |
|---|---|---|
| ListID | audience_id | ListID |
| TemplateID | template_id | TemplateID |
| Subject | campaign_subject | Subject |
| CampaignReference | correlation_id | Internal tracking metadata |
Martini implementation pattern
A Martini REST API accepts a validated campaign request, applies approved list and template rules, maps the request to Campaign Monitor’s campaign API, and returns the Campaign Monitor identifier and status. Correlation identifiers, authorization checks, validation, and bounded retries prevent duplicate campaign creation after timeouts.
Martini capabilities used
- API exposure
- workflows
- API consumption
- data mapping
- business rules
- authentication
- error handling
Applications commonly integrated with Campaign Monitor
Campaign Monitor can be connected with customer, commerce, website, event, survey, and support applications to synchronize consented audiences, subscriber activity, and engagement data. The exact direction and ownership of contact and consent fields should be defined before enabling synchronization.
| Application | Scenario | Direction | Martini Pattern |
|---|---|---|---|
| Salesforce | Synchronize contacts, marketing consent, campaign audiences, and selected engagement or subscription changes. | Salesforce → Martini → Campaign Monitor | A scheduled Martini workflow retrieves eligible Salesforce contacts, validates consent and subscription status, maps standard and custom fields, and upserts subscribers into the selected Campaign Monitor list. Separate webhook and reconciliation workflows can return subscription changes or engagement data to Salesforce. |
| Shopify | Add consenting customers and relevant customer data to Campaign Monitor lists for targeted email campaigns. | Shopify → Martini → Campaign Monitor | Martini consumes Shopify customer or event data through supported Shopify interfaces, normalizes email addresses, applies consent rules, and calls Campaign Monitor subscriber or import endpoints. Failed batches are recorded for bounded retry and review. |
| WordPress | Send website or form subscribers to Campaign Monitor lists for newsletters and follow-up communications. | WordPress → Martini → Campaign Monitor | A Martini API receives approved subscription requests from WordPress or an associated form process, validates required fields and consent, maps list-specific custom fields, and invokes the Campaign Monitor REST API. |
| Magento / Adobe Commerce | Synchronize customer and order-derived audience data for lifecycle and promotional campaigns. | Magento / Adobe Commerce → Martini → Campaign Monitor | A scheduled or event-driven workflow retrieves eligible customers from Magento or Adobe Commerce, applies consent and segmentation rules, and uses Campaign Monitor subscriber imports for larger audience changes. Correlation keys make replay safe. |
| Eventbrite | Add consented event registrants or attendees to segmented Campaign Monitor lists for event communications and follow-up. | Eventbrite → Martini → Campaign Monitor | Martini retrieves Eventbrite registration data through the available Eventbrite integration method, filters for permitted communications, maps event and attendee attributes to Campaign Monitor custom fields, and performs controlled subscriber updates. |
| SurveyMonkey | Transfer consented survey respondents or audience attributes into Campaign Monitor for follow-up communications. | SurveyMonkey → Martini → Campaign Monitor | A Martini workflow consumes SurveyMonkey responses or exports through the selected supported interface, validates consent, transforms response-derived segments, and updates the appropriate Campaign Monitor list without exposing sensitive response data in logs. |
| Zendesk | Synchronize eligible support contacts or customer segments with Campaign Monitor for service and customer communications. | Zendesk → Martini → Campaign Monitor | Martini retrieves eligible Zendesk users or events, applies communication eligibility rules, maps contact and preference fields, and updates Campaign Monitor subscribers. Campaign Monitor webhook notifications can be routed to a controlled customer-preference process where appropriate. |
| HubSpot | Coordinate contacts, segmentation, and engagement data when Campaign Monitor remains the outbound email platform for a business unit or brand. | HubSpot → Martini → Campaign Monitor | Martini orchestrates field ownership and consent rules between HubSpot and Campaign Monitor, using scheduled REST API reads, subscriber updates or imports, and selected webhook events. Checkpoints and conflict rules prevent uncontrolled bidirectional overwrites. |
How to build a Campaign Monitor integration in Martini
Objective
Establish Campaign Monitor access using the authentication model appropriate to the integration and keep credentials outside workflow definitions.
Instructions in Martini
- Choose API-key authentication for controlled server-to-server access or OAuth for user-authorized access
- Store API keys, OAuth client configuration, and related secrets in protected Martini configuration
- Use separate development, test, and production credentials where possible
- Avoid logging authorization headers, subscriber email addresses, or complete webhook payloads
Objective
Select an event-driven, scheduled, or API-led entry point based on the Campaign Monitor resource and required freshness.
Instructions in Martini
- Use a Martini API to receive selected Campaign Monitor webhook notifications
- Use scheduler triggers for reports, reconciliation, and audience synchronization
- Expose a Martini API when internal applications need to request Campaign Monitor operations
- Do not assume webhook coverage for campaigns, reports, or every account event
Objective
Call the appropriate Campaign Monitor endpoint and handle collections, imports, and report responses according to endpoint behavior.
Instructions in Martini
- Call the REST API for clients, lists, subscribers, campaigns, templates, or reports
- Use subscriber import operations for suitable larger audience updates
- Treat collections as paginated unless the endpoint explicitly guarantees a complete response
- Persist page state, campaign identifiers, or synchronization cursors for restartable processing
Objective
Coordinate validation, transformation, business rules, target writes, and response handling in a maintainable Martini workflow.
Instructions in Martini
- Separate webhook acknowledgement from heavier downstream processing where suitable
- Apply consent, subscription, list ownership, and campaign approval rules
- Route recoverable failures to bounded retry handling and permanent failures to review
- Use correlation identifiers to connect source requests, Campaign Monitor operations, and target outcomes
Objective
Convert Campaign Monitor objects and fields into the canonical model used by connected systems.
Instructions in Martini
- Normalize email addresses before subscriber matching or import
- Map list-specific custom fields explicitly and define data types and formatting rules
- Transform campaign reports into the target analytics or warehouse model
- Use Martini mapping and validation logic rather than duplicating field transformations across point-to-point scripts
Objective
Persist synchronized subscribers, preferences, campaigns, and engagement results in downstream applications or databases.
Instructions in Martini
- Use normalized email and Campaign Monitor identifiers as stable keys
- Preserve unsubscribe and deactivation events rather than automatically resubscribing contacts
- Write report data to the selected SQL or analytics destination
- Make repeated workflow execution idempotent and safe to replay
Common Campaign Monitor data objects used in integrations
| Object | Typical Use | Common target systems | Martini handling |
|---|---|---|---|
| Clients | Represent customer or sub-account contexts managed within a Campaign Monitor account. | Salesforce, HubSpot, internal account databases | Martini retrieves and maps client identifiers and account context, then uses them to route list, campaign, or reporting operations to the correct Campaign Monitor context. |
| Lists | Define subscriber audiences used for campaigns, segmentation, and subscription management. | Salesforce, Shopify, WordPress, marketing databases | Martini treats list identifiers as configuration or reference data, validates the target list, and applies list-specific field, consent, and synchronization rules. |
| Subscribers | Represent individual contacts associated with a Campaign Monitor list, including subscription status and custom fields. | Salesforce, HubSpot, Shopify, Zendesk, SQL databases | Martini normalizes email addresses, maps custom fields, validates consent, performs idempotent updates or imports, and preserves unsubscribe and deactivation states. |
| Campaigns | Store email campaign metadata, content, recipients, and delivery state. | Internal applications, Salesforce, data warehouses, reporting platforms | Martini can create or retrieve campaigns through the REST API, validate list and template references, return campaign identifiers, and track request status and correlation data. |
| Templates | Provide reusable email content for campaign creation and standardized communications. | Internal content systems, campaign orchestration APIs | Martini can retrieve or select supported templates, map approved campaign inputs, and apply business rules before creating a Campaign Monitor campaign. |
| Reports | Expose campaign delivery and engagement information such as opens, clicks, bounces, and unsubscribes. | SQL databases, analytics platforms, Salesforce, internal reporting services | Martini retrieves reports on a schedule, paginates where applicable, transforms results into a reporting model, and stores checkpoints for incremental processing. |
Authentication and security considerations
Authentication options
Campaign Monitor supports API-key authentication through HTTP Basic Authentication and OAuth for user-authorized applications. API keys are generally suitable for controlled server-to-server integrations, while OAuth is more appropriate when users or multiple customer accounts authorize access.
Secret and data protection
- Store API keys, OAuth client credentials, and tokens in Martini secrets or protected environment configuration.
- Use separate credentials for development, testing, and production where possible.
- Do not log authorization headers, complete webhook payloads, or unnecessary subscriber personal data.
- Apply access controls to Martini APIs that receive Campaign Monitor webhook notifications or expose campaign operations.
Operational considerations for Campaign Monitor integrations
Rate limits and retries
Confirm current Campaign Monitor usage limits for each account and endpoint. Use bounded exponential backoff for transient failures and rate-limit responses, but do not repeatedly retry permanent validation or authorization failures.
Pagination and checkpoints
Treat list members, campaigns, reports, and other collections as paginated unless endpoint behavior confirms otherwise. Persist page state, campaign identifiers, or timestamps so failed work can restart without duplicating downstream results.
Consent and idempotency
Use normalized email addresses and Campaign Monitor list and subscriber identifiers as stable keys. Preserve unsubscribe and deactivation events, define consent ownership, and prevent automatic resubscription when a source system still marks a contact as active.
Webhook and schema control
Design for duplicate and out-of-order notifications, acknowledge webhook requests promptly, and use scheduled reconciliation for event types not covered by Campaign Monitor webhooks. Keep custom-field mappings configurable and test changes to API versions, list fields, and product-specific endpoints.
Why use Martini instead of scripts or point-to-point integrations?
Centralized integration logic
Martini provides a maintainable place to authenticate with Campaign Monitor, receive supported webhook notifications, schedule report retrieval, and expose internal APIs without distributing Campaign Monitor-specific behavior across scripts and applications.
Reusable transformation and business rules
Workflows can normalize subscriber data, map list-specific custom fields, enforce consent and suppression rules, and transform campaign reports for CRM, database, or analytics targets.
Reliability and operations
Martini supports orchestration, checkpoints, validation, bounded retries, error handling, logging, and monitoring. This helps teams manage pagination, duplicate notifications, partial batch outcomes, and reconciliation requirements as integration volume grows.
Controlled API façade
Martini can expose a stable internal API for campaign creation or subscriber operations while keeping Campaign Monitor credentials, endpoint behavior, and policy decisions behind a governed integration layer.
Frequently asked questions
Campaign Monitor can be integrated primarily through its versioned REST API, which supports clients, lists, subscribers, campaigns, templates, and reports. Selected list and subscriber events can be delivered through webhooks, subscriber imports support larger audience updates, and scheduled API workflows can retrieve reports or reconcile data.
Yes. Although no native Martini Campaign Monitor connector is documented in the supplied materials, Martini can consume Campaign Monitor’s REST API, receive supported webhook notifications, call subscriber import operations, expose internal APIs, and orchestrate synchronization workflows.
No. A dedicated Campaign Monitor connector is not required. Martini can use Campaign Monitor’s confirmed REST API, selected webhooks, subscriber import operations, and API-key or OAuth authentication through workflows and APIs.
Lonti does not charge an additional per-connector or per-vendor fee to integrate Campaign Monitor. The integration is subject to the provisioned capacity of the Martini environment. Separate costs may apply from Campaign Monitor, cloud infrastructure, or other third-party systems depending on subscription, usage, and deployment model.
Use the REST API as the primary method for clients, lists, subscribers, campaigns, templates, and reports. Use subscriber imports for suitable larger audience operations, webhooks for selected subscriber and list events, and scheduled REST API retrieval for reports or events not covered by notifications. No official GraphQL or SOAP interface was confirmed.
Yes, for selected list and subscriber events such as subscription, unsubscribe, deactivation, and update notifications where configured. Campaign Monitor webhooks do not cover every campaign, report, or account event, so Martini workflows should use scheduled reconciliation when complete consistency is required.
Martini can run scheduled workflows for audience and report synchronization, process webhook notifications for supported events, and maintain page state, campaign identifiers, or timestamps as checkpoints. Normalized email addresses and Campaign Monitor list or subscriber identifiers support idempotent updates and safe replay.
Martini maps Campaign Monitor fields to canonical and target models, validates consent and custom fields, and applies business rules before writing downstream data. Workflows can classify permanent validation or authorization failures separately from transient failures, use bounded retries with backoff, and record correlation and processing state to limit duplicates.
Related Martini documentation
Workflows
Operations
Connect Campaign Monitor with Martini
Use Martini to build governed Campaign Monitor integrations for subscriber synchronization, event processing, campaign orchestration, and reporting workflows.