Except for single-line entry and certain control commands, all commands sent to CANDE result in the display of a number sign (#) prompt, either alone or accompanied by a message. Progress in processing a command may be indicated by a number sign (#) with a response (for example, “#UPDATING”). If the command has not been successfully completed, the number sign is followed by an error message. Successful completion of a CANDE command results in the display of the number sign (#) alone or with messages related to the command's results.