exclusionmessage

noun
UK /ɪkˈskluːʒən ˈmɛsɪdʒ/
US /ɪkˈsluːʒən ˈmɛsɪdʒ/

A message that tells someone they are not allowed to join in.

The app showed an exclusion message when I tried to enter the game without a ticket.


OTHER MEANINGS

2. A computer notice saying a file or account has been left out or removed.

The system sent an exclusion message after the file was deleted from the list.

3. A written note that keeps a person out of a group or event.

He received an exclusion message saying he could not attend the club meeting.

4. A warning that certain content is not included in a set.

The report included an exclusion message about the missing data.