I want to know if it is possible to get Canvas to automatically mark an assignment as "missing" after the due date and/or last available date for the assignment has passed. This seems to happen for assignments where, for example, the student has to upload a file. If they haven't done so by the due date, it gets flagged as missing. But when I give assignments based on an external LTI, nothing happens after the due date. Is there something I can change?
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Alrighty, chat support confirmed that as of now, the 'External Tool' submission type for assignments does not generate a 'Missing' tag, and so won't be automatically deducted per rules in the gradebook. However, it does look like it automatically removes the item from the student's to-do list upon submission, at least with the Turnitin external tool I just tested. That functionality may differ depending on the tool used.