1: \label{Course_Critical_Message}
2: A ``Critical Message'' is a message that will appear immediately after the
3: recipient user logs in. The user must acknowledge receipt to continue; it
4: is not possible to use the rest of LON-CAPA until they do so.
5:
6: To send a Critical Message, push the \textbf{COM} button on the remote
7: to get to the Communication screen. On each of the message sending
8: screens (\textbf{Send message to user(s)}, \textbf{Broadcast message
9: to course}, and \textbf{Upload message to course}), there are two
10: checkboxes, \textbf{Send as critical message} and \textbf{Send as
11: critical message and return receipt}.
12:
13: \textbf{Send as critical message} will send this message as a critical
14: message. \textbf{Send as critical message and return receipt} will
15: send the message as a critical message, but additionally return a
16: message to you each time a user acknowledges receipt of the message.
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