Segments

A segment is a saved audience definition composed of attribute, event, list, and RFM conditions. Segments are evaluated on-read so membership always reflects the latest data.

Creating a segment

Go to Segments → + New segment.
Give it a name and optional description.
Add conditions. Groups of conditions can be combined with AND / OR, and nested.
Click Preview to see the estimated count and a sample of 20 matching customers.

Condition types

Type	Example
Attribute	`plan = 'premium'`, `wallet_balance_ngn > 10000`, `country IN ('NG','KE','GH')`
Event	Performed `purchase_completed` at least 2 times in the last 30 days where `total > 50`.
No event	Has not performed `app_opened` in the last 14 days.
List membership	Is on list VIP but not on list Churned.
RFM	RFM bucket IN Champions, Loyal.
Consent	Consent for channel email is `opted_in`.

Live preview

As you edit conditions the preview count updates automatically (400ms debounce) so you can feel your way to the right size of audience without saving.

Using segments

As a campaign audience (one-shot or scheduled).
As a journey entry trigger ("whenever a customer enters this segment").
As a journey exit condition ("stop the flow when they leave this segment").
As a filter in analytics (funnels, cohorts, revenue attribution).

Performance notes

Segments are cached for 60 seconds inside the segment preview endpoint. For very large workspaces (> 5M customers), use RFM buckets or pre-computed attributes where possible — they index better than deeply nested event counts.