# Create or update an alerts configuration

Create or update an alerts configuration.
If no alerts configuration exists, it will be created.

Endpoint: POST /v1/users/{userId}/followers/{followerUserId}/alerts
Version: 1.0
Security: sessionToken

## Path parameters:

  - `userId` (string, required)
    Tidepool User ID of the user who granted follow access.

  - `followerUserId` (string, required)
    Tidepool User ID of the care partner to receive alerts.

## Request fields (application/json):

  - `urgentLow` (object)
    Blood glucose measurements at or below this value will trigger an immediate and urgent alert.

  - `urgentLow.enabled` (boolean)
    A toggle for disabling the alert.

  - `urgentLow.threshold` (any, required)
    Blood glucose value, in  or

  - `low` (object)
    Blood glucose measurements at or below this value will trigger an alert.

  - `low.delay` (integer)
    Duration in minutes to wait before alerting.

  - `low.repeat` (integer)
    Duration in minutes, after which an alert will be repeated.
A value of 0 disables the repeat functionality.

  - `high` (object)
    Blood glucose measurements at or above this value will trigger an alert.

  - `noCommunication` (object)
    An alert sent when issues prevent the display of CGM data.

  - `notLooping` (object)
    An alert sent when the Tidepool Loop app is unable to loop.