A message is a short, written or verbal, bit of information sent from one person to another. It can convey information through placards, reminders, sms or hoardings.
Mainly, a message is an informal means of communication.
When composing a message, certain key points should be followed such as, only the important points should be written, the message should be in reported speech, and abbreviations, symbols and contracted forms of words can be used as there is a word limit to adhere to. Furthermore, a message should always bear the name of the recipient and a salutation. A message should be clear and direct, as the receiver of the message has to sift through the given message and pick out the most vital bits of information in order to convey it right to the person for whom it is intended.