notification

/ˌnoʊtɪfɪˈkeɪʃən/
noun
  1. A message or alert that informs someone about something.
    • I received a notification on my phone about the package delivery.
    • He set a notification to remind him of the meeting.
    • The school sent a notification to parents about the early closing.
  2. The act of officially informing someone about something.
    • Notification of the decision was sent by email.
    • The company requires notification of any address change.
    • The police made a formal notification to the family.