Hi @sneiling01
This guide describes how How do I use posting policies in a course?
And here is the pertinent excerpt..........
Post Hidden Grades
When you are ready to make grades visible to students, you can post grades and/or submission comments for a specific assignment. You can post grades for everyone in the course [1], or you can post only grades for graded submissions [2].
When you post grades for everyone, ungraded submissions display no grade.
When you post grades for graded submissions and/or submission comments, any ungraded assignment grades that are updated later will remain hidden until manually posted.
If you make updates to posted grades, students can view these updates and, depending on their notification settings, may receive a grade-change notification.
I hope this is helpful,
Kelley
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