How can I delete Submission Comments from my Inbox?
You don't delete submission comments through the Inbox. You can delete messages from the Inbox portion, but not submission comments. I see that you asked another similar question here: Deleting Submission Comments. I've provided a more complete answer there.
Messages will automatically remove themselves from that location after 4 weeks, but if you need to delete a message because it was sent in error, then go into SpeedGrader and delete the message from there. This removes it from Canvas but may not keep it from going to the student through a notification.
Hi Diane Emmolo
There is a "cog" symbol on the right of a message that has delete as one of the options.
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