# Block device key

Block a user's device. Once blocked, the device status will be Blocked and device validation will fail if requested. Required permissions: apps:edit, [appId]:edit, devices:edit.

Endpoint: PUT /v1/users/{user_id}/device-keys/{key_id}/block
Security: ClientAccessToken

## Path parameters:

  - `user_id` (string, required)
    ID of the user

  - `key_id` (string, required)
    An identifier for the user's device


## Response 200 fields