# Customer.io Docs: Data-driven segments

- Canonical HTML: https://growth.iangoh.com/sources/customer-io-docs-data-driven-segments-docs-customer-io/
- Original source: https://docs.customer.io/journeys/data-driven-segments/
- Domain: docs.customer.io
- Latest check: 2026-06-09
- Channels: Lifecycle Messaging, Migration, Reactivation

## Cited GrowthDex tactics

- [Customer.io no backfill segment trigger before migration blast](/growth-ideas/customerio-no-backfill-segment-trigger-before-migration-blast/) - Do not assume a backfilled segment will trigger reactivation automatically after a migration, because historical matches can join the segment without entering the campaign.

## Related reading

- [GrowthDex Blog](/blog/)
- [All growth ideas](/growth-ideas/index.md)