Import running: 109,100 / 175,700 subscriptions (62%) · templates 3/3 · segments 7/7 rebuilt · dual-run day 2 of 7 · OneSignal untouched. Details →

Import

Install the SDK and devices register themselves — the normal path.

Create users + subscriptions server-side with raw tokens.

Upload tokens, external IDs and tags in bulk — the OneSignal-export shape works as-is.

Migrating a whole app? Use Migrate off OneSignal — it does export + CSV + verification for you.