Note: the grade pushback will only work with an LTI 1.3 version.
By default, SOWISO sends over two types of grades to your LMS:
Grades from tests
Grades from practice packages
To change this, go to your class Settings, and then to LTI.
Here you can disable one or both options. If you disable both of them, no grades will be sent from SOWISO to your LMS. You can change these settings per SOWISO class.