title: UserAuthenticate
description: Authenticate network or mobile users with MDM.
payload:
  requesttype: UserAuthenticate
  supportedOS:
    iOS:
      introduced: n/a
    macOS:
      introduced: '10.7'
      devicechannel: false
      userchannel: true
      requiresdep: false
      userenrollment:
        mode: forbidden
    tvOS:
      introduced: n/a
    visionOS:
      introduced: n/a
    watchOS:
      introduced: n/a
  content: Authenticate network or mobile users with MDM.
payloadkeys:
- key: MessageType
  type: <string>
  presence: required
  rangelist:
  - UserAuthenticate
  content: The message type, which must have a value of 'UserAuthenticate'.
- key: UDID
  type: <string>
  presence: required
  content: The device's UDID (Unique Device ID).
- key: UserID
  type: <string>
  presence: required
  content: Local mobile user's GUID or network user's GUID from an Open Directory
    record.
- key: DigestResponse
  type: <string>
  presence: required
  content: A string provided by the client on second UserAuthenticate request after
    receiving 'DigestChallenge' from server on first UserAuthenticate request.