Subscriber Joins List Trigger

The Subscriber Joins List trigger fires when a subscriber is added to a specific list (or any list).

When It Fires

This trigger activates when:

• A new subscriber signs up and is assigned to a list
• An existing subscriber is manually added to a new list
• An automation adds the subscriber to a list
• API call adds subscriber to a list

Configuration Options

Option	Description
List	Select a specific list, or leave as “Any list” to trigger for all lists

Available Data (Context)

Variable	Description
{{email}}	Subscriber’s email address
{{first_name}}	First name
{{last_name}}	Last name
{{list_id}}	The ID of the list they joined
{{list_name}}	The name of the list they joined

Common Use Cases

List-Specific Welcome Sequence

Send different welcome emails based on which list subscribers join:

Automation 1: VIP List Welcome
  Trigger: Subscriber Joins List → "VIP Members"
  → Send Email: "Welcome to our VIP program!"
  → Add Tag: "vip"

Automation 2: Newsletter Welcome
  Trigger: Subscriber Joins List → "Newsletter"
  → Send Email: "Thanks for subscribing to our newsletter!"

Course Onboarding

Deliver course content when someone joins a course list:

1. Subscriber Joins List → “Free Course”
2. Send Email: “Day 1: Getting Started”
3. Wait: 1 day
4. Send Email: “Day 2: Core Concepts”
5. Wait: 1 day
6. Send Email: “Day 3: Advanced Tips”
7. Wait: 1 day
8. Send Email: “Course Complete! Here’s your next step…”

Product Interest Tracking

When someone joins a product-specific list, tag them for future targeting:

1. Subscriber Joins List → “Product A Interested”
2. Add Tag: “interested-product-a”
3. Wait: 7 days
4. Send Email: “Special offer on Product A”

Difference from “Subscriber Created”

Trigger	Fires When	Best For
Subscriber Created	Brand new subscriber added	Global welcome, admin notifications
Subscriber Joins List	Any time subscriber is added to a list	List-specific sequences, existing subscribers joining new lists

Pro Tips

• Use “Any list” to run a generic workflow for all list additions
• Create separate automations for each important list with targeted content
• Combine with the “Add to List” action to create multi-list journeys