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A "Critical Message" is a message that will appear immediately after the recipient user logs in. The user must acknowledge receipt to continue; it is not possible to use the rest of LON-CAPA until they do so.

Only the Course Coordinator and/or Instructor can send Critical Messages.

To send a Critical Message, do the following:

  1. Select COM on the Remote Control or Main Menu.

  2. On each of the message sending screens (Send message to user(s), Broadcast message to course, and Upload message to course), there are two checkboxes, Send as critical message which sends this message as a critical message, and "Send as critical message and return receipt", which sends the message as a critical message, but additionally returns a message to you as users acknowledge receipt of the message.