# Update User Metadata Collection

Updates the user's metadata collection corresponding to . Each metadata collection is an unbounded JSON object with client-defined fields.

Endpoint: POST /metadata/{userId}/{collectionName}
Version: 1.0
Security: sessionToken

## Path parameters:

  - `userId` (string, required)
    Tidepool User ID

  - `collectionName` (string, required)
    Metadata Collection Name
    Enum: "profile", "preferences", "settings", "groups", "private"