If you would like to use the`Device ID` mapping for the Cohort Destination you will need to ensure you have captured the Braze device_id which is not the same as the Segment device_id. Braze has some methods (linked below) that customers can use to capture the Braze device_id for use in the above workaround:

If you would like to use the`Device ID` mapping for the Cohort Destination you will need to ensure you have captured the Braze device_id, which is not the same as the Segment device_id. Braze has some methods (linked below) that customers can use to capture the Braze device_id for use in the above workaround:

-[Swift method](https://braze-inc.github.io/braze-swift-sdk/documentation/brazekit/braze/deviceid/)

-[Android method](https://braze-inc.github.io/braze-android-sdk/kdoc/braze-android-sdk/com.braze/-i-braze/device-id.html)

-[Web method](https://js.appboycdn.com/web-sdk/latest/doc/modules/braze.html#getdeviceid)