If you have an assignment activity with cases of students submitting drafts instead of proper submissions this can be disorienting as:
You can’t easily change the status of Draft to submitted for those who have already made submissions but you can ask them to go back and press the extra button after uploading to confirm their submission.
Check this on future assignment turn-ins too, just in case!
Click into the Assignment in question (normally, editing doesn’t need to be enabled.)
Locate the Actions menu (gear icon) and click the Edit Settings link.
Scroll down to the Submission settings section and expand it.
Change/Ensure the value of Require students to click submit button to No.
Change/Ensure the value of Require that students accept the submission statement to No
Scroll to the bottom of the page.
Click the Save and return to course button.
Repeat for each assignment in your course, just in case.