Our SIS gradebook allows for blank grades in the gradebook to be calculated as zeros in the quarter grade. In order to have that calculation appear in Schoology, the assignment must be marked missing and the student receives a 0. This can send the wrong message to students that the 0 is final and can not be submitted... but the assignment must be marked this way in order for our Schoology gradebook and our SIS gradebook to match. If we leave blank grades excused in our SIS as Schoology treats them, the students are lead to believe that their submission is not making a negative impact on their grade.
Setting for Blank Grades in gradebook - final calculation