Build segments by existing segments

Segment-based filtering allows you to include users who already belong to one or more existing segments. This lets you reuse previously defined logic instead of recreating complex conditions from scratch, making it easier to build layered audience targeting.

How to build segments by existing segments

To build a segment using existing segments:

1. When creating a new segment, click Add filter by → Segment.

2. Select one or more existing segments to include in your new segment.

3. If you add multiple segments, choose how they should be combined using a logic operator:

   • Select AND to include users who belong to all selected segments
   • Select OR to include users who belong to any of the selected segments

Segment nesting restrictions

When using the Segment filter, keep the following restrictions in mind:

1. A segment cannot include itself, either directly or through another segment. Circular or recursive segment references are not supported.
2. You can create up to five levels of nested segments.

For example:

• Segment A includes Segment aaa
• Segment aaa includes Segment bbb
• Segment bbb includes Segment ccc and so on, up to five levels of nesting.

Include all of a user’s devices

Below the filter groups, enable Include all of a user’s devices to target a user across all their devices, not just the one that matched the segment condition. This ensures they receive your messages on every platform they use.

If any of a user’s devices matches the conditions, all their devices are added to the segment. If the checkbox is left unchecked, only matching devices are included.

This same checkbox appears, disabled, on a segment’s read-only detail page — it reflects the setting the segment was created with and can’t be changed there.

Use cases for segment-based filtering

Below are practical scenarios showing how to use existing segments to create more targeted audiences.

Premium active users

Goal: Target only premium subscribers who are recently active.

How to set up:

• Segment filter: Select Active Users (users who opened the app in the last 7 days)
• Tag filter: subscription_type_premium is true
• Operator: AND

Use case: Send exclusive offers or premium feature announcements to engaged, paying users.

Multi-segment engagement

Goal: Target users who belong to either high-value customers or recent purchasers.

How to set up:

• Segment 1: Select High-Value Customers
• Segment 2: Select Recent Purchasers
• Operator: OR

Use case: Run promotional campaigns targeting users with demonstrated purchase behavior from multiple angles.

Tips for segment-based filtering

• Reuse well-defined segments to maintain consistency across campaigns and reduce setup time.
• Combine segment filters with tags or events for more precise targeting.
• Keep track of segment nesting levels to avoid hitting the five-level limit.
• Regularly review and update base segments to ensure derived segments remain accurate.