To delete a submission, navigate to the assessment and click on the "manage" icon.

In the following screen, delete the review first, and then the submission. When deleting a review, the submission will show up in a different tab.
To delete a submission, navigate to the assessment and click on the "manage" icon.
In the following screen, delete the review first, and then the submission. When deleting a review, the submission will show up in a different tab.