TriggerMailchimpReal-timeUpdated May 2026
How do I trigger when a new Mailchimp subscriber is added?
Short answer: Drop the "Mailchimp → New Subscriber" trigger on your workflow canvas, add filters if you want them, and publish. It fires within seconds of the event in Mailchimp, not on a polling schedule.
Anatomy
What this trigger looks like in a workflow.
Drop it on the canvas. Configure a couple of fields. Publish.
In the builder
Trigger
New Subscriber
When the matching event happens
on subscriber addednew subscriber addedwhen subscriber addedwhen a new subscriber is added to a mailchimp audiencewatch for subscriber added
What this trigger returns
for the curiousYou don’t need to read this. Tiny Command auto-maps every field into the visual picker so downstream nodes can pull values by clicking. We show it here for power users who want to know what’s on the wire.
{"ip": "127.0.0.1","email": "tc@example.com","phone": "","web_id": "441282457","address": "","company": "","list_id": "8f33ddce6d","fired_at": "2026-04-11 10:00:00","last_name": "Test","member_id": "2f60c281f7","email_type": "html","event_type": "subscribe","first_name": "TC"}
Output shape
Fields available to downstream nodes.
Every field below can be referenced by name in any action or filter that comes after this trigger.
| Field | Type | Example |
|---|---|---|
| ip | string | "127.0.0.1" |
| string | "tc@example.com" | |
| phone | string | "" |
| web_id | string | "441282457" |
| address | string | "" |
| company | string | "" |
| list_id | string | "8f33ddce6d" |
| fired_at | string | "2026-04-11 10:00:00" |
| last_name | string | "Test" |
| member_id | string | "2f60c281f7" |
| email_type | string | "html" |
| event_type | string | "subscribe" |
| first_name | string | "TC" |
Pairs with
Drop these actions after New Subscriber.
FAQ
Questions about New Subscriber.
How does the New Subscriber trigger work in Mailchimp?
Fires when a new subscriber is added to a Mailchimp audience. Common use: sync to CRM, fire a welcome flow elsewhere, or notify Slack on lead-gen subscribes.
Is the New Subscriber trigger real-time?
Yes. New Subscriber uses webhooks or push subscriptions, not polling. Your workflow fires within seconds of the event happening in Mailchimp.
What data does New Subscriber return?
The full event payload from Mailchimp. The output shape table on this page lists every field, its type, and an example value so you can map fields into downstream nodes.
Can I filter New Subscriber so only some events start a workflow?
Yes. Add a Filter node right after the trigger and match on any field, whether that's subject, sender, status, or anything else in the payload. Workflows only continue when the filter passes.
Do I need Mailchimp admin permissions to use New Subscriber?
For most Mailchimp accounts a standard user can authorize the trigger. Some Mailchimp plans require an admin to enable third-party webhooks. Check Mailchimp's docs if the trigger fails to register.
More triggers
Other Mailchimp triggers.
Trigger
Campaign Sent
Fires when a Mailchimp campaign is sent. Use to log the send to your data warehouse, post the recap to Slack, or notify stakeholders.
TriggerEmail Cleaned
Fires when an email is cleaned (hard-bounced) from a Mailchimp list. Use to update your source-of-truth so you stop trying to email them elsewhere.
TriggerProfile Updated
Fires when a subscriber profile is updated in Mailchimp (merge field, tag, or preference change). Use to keep your CRM in sync with Mailchimp segments.
TriggerSubscriber Unsubscribed
Fires when a subscriber unsubscribes from Mailchimp. Use to propagate consent into your CRM/CDP and stop messaging them everywhere.
Build a workflow on this trigger.
One trigger. 16+ downstream actions. Zero glue.
