Integration reference
Mailchimp Trigger and Action reference
React to audience changes, add or update subscribers, manage tags, and create campaign drafts.
Authentication
Connect Mailchimp through OAuth and choose an audience. Your account permissions determine which audiences are available.
- Trigger account type:
oauth2; reconnect byoauth. - Action connection type:
oauth2; available modes: Connected Mailchimp account.
Create or reuse the account from a Trigger or Action dialog, or manage it under Settings → Connected accounts. See Authentication and permissions for scopes and access diagnostics, or Connected accounts for reuse, reconnect, revocation, and credential rotation.
Scopes and permissions
The Trigger manifest does not declare a fixed base OAuth scope list. Installation access, API credentials, or the selected event configuration can still control available resources.
Operation-specific requirements appear in the tables below. Custom event selections can add scopes dynamically, so the current Trigger or Action dialog remains authoritative for the exact consent request.
Use Mailchimp as a Trigger
The current provider manifest contains 8 available Trigger definitions. Representative definitions include:
- Subscribe
- Unsubscribe
- Profile
- Campaign
View all 8 available Trigger definitions
| Trigger | Manifest key | Delivery | Additional scopes |
|---|---|---|---|
| Subscribe | mailchimp.subscribe.instant | instant | None declared |
| Unsubscribe | mailchimp.unsubscribe.instant | instant | None declared |
| Profile | mailchimp.profile.instant | instant | None declared |
| Cleaned | mailchimp.cleaned.instant | instant | None declared |
| Upemail | mailchimp.upemail.instant | instant | None declared |
| Campaign | mailchimp.campaign.instant | instant | None declared |
| Any Mailchimp Events | mailchimp.any_event.instant | instant | None declared |
| Custom Mailchimp Events | mailchimp.custom_webhook_events.instant | instant | None declared |
Choose the narrowest event definition that fits the Workflow. Configure provider-specific resource and event filters in the Source dialog before adding broader Workflow Filters.
Use Mailchimp Actions
The current Action manifest contains 6 operations. Representative Actions include:
- Add or Update Subscriber
- Get Subscriber
- Update Subscriber Tags
- Create Campaign Draft
View all 6 available Action definitions
| Action | Manifest key | Access and auth | Manifest rate limit |
|---|---|---|---|
| Add or Update Subscriber | mailchimp.upsert_subscriber | None declared FastHook-managed account | 1/second |
| Get Subscriber | mailchimp.get_subscriber | None declared FastHook-managed account | 1/second |
| Update Subscriber Tags | mailchimp.update_tags | None declared FastHook-managed account | 1/second |
| Get Campaign | mailchimp.get_campaign | None declared FastHook-managed account | 1/second |
| Create Campaign Draft | mailchimp.create_campaign | None declared FastHook-managed account | 1/second |
| Custom API Request | mailchimp.custom_api_request | None declared FastHook-managed account | 1/second |
The Action editor reads its required permissions, fields, remote resource pickers, output schema, and rate limit from the provider manifest. Available fields can change with the selected operation and authentication mode.
Build a Workflow
- Create a Source using a Mailchimp Trigger definition.
- Create a Workflow with that Source as its Trigger.
- Add the required Mailchimp Action and select the connected account.
- Map Trigger or earlier-Step data into the Action fields with the field picker.
- Add a Filter, Paths, Delay, or Transformation when the route needs it.
- Activate the Workflow, produce a controlled event, and verify the run in Audit and in Mailchimp.
Troubleshooting Mailchimp
- The account is missing or cannot be selected
- Confirm the active FastHook team, provider, account status, and authentication mode. A disabled or revoked account cannot execute an Action.
- A resource picker is empty
- Verify that the connected provider identity can access the resource itself. OAuth consent does not add workspace, repository, channel, drive, project, base, or record permissions.
- The editor asks for additional scopes
- Reconnect the same account from the affected Trigger or Action so FastHook can request its current manifest scopes. Then reopen the editor and select the resource again.
- An active Workflow returns 401, 403, or a permission error
- Compare the selected operation’s access requirements below with the account recorded in Audit. Check provider-side membership and object access before repeating the Action.
- The provider returns 429 or a temporary 5xx
- Inspect the Step attempt and retryability in Audit. FastHook can retry temporary failures, but provider quotas and idempotency rules still apply.
Provider-specific checks
- New subscribers default to pending so Mailchimp can request confirmation. Choose subscribed only when you already have the necessary consent.
- Create Campaign Draft creates a draft; it does not send a campaign.
- Audience webhooks contain form-encoded data. FastHook verifies the signature and exposes nested JSON fields for mapping.