A staff meeting announcement needs to be in the first sentence, ex: please plan to attend....day, date, time, place should be included. Include the purpose of the meeting, ex: we will explain the new reimbursement procedure. Be sure to let readers know if they need to prepare anything/bring anything to the meeting. IF you require confirmation, tell the readers how to respond and by when. Optional: If the meeting is mandatory, it should be stated in the subject line and in the body. Goodwill is a good ending, ex: We look forward to seeing you there.