Migrate between regions
Temporal Cloud's High Availability features allow you to migrate a namespace from one region or cloud provider to another with zero downtime.
Using High Availability features affects pricing.
- Add a namespace replica in the region you want to migrate to. See regions for a list of available regions and supported multi-region and multi-cloud configurations.

Add a namespace replica

Choose the region for the replica
- Wait for the replica to become active. The Cloud UI will display a time estimate, and namespace admins will receive an email when the replica is active.
- If your workers are using API key authentication: ensure your workers (and all other client code) are updated to use the regional endpoint of the new replica.
- Trigger a failover to the new region.

Initiate failover to the new region
- Remove the namespace replica in the region you are migrating from.
note
If using API keys for worker authentication, you must open a support ticket to remove the replica.

Remove the replica for the original region
note
All replica changes are subject to a cooldown period before further replica changes can be made.