Schoology allows Instructors and Students to access SolidProfessor via the left side navigation in a Course, below Materials, Gradebook, etc. This is behavior that breaks the connection between Schoology and SolidProfessor, and should be disabled using the following steps.
1. Go to Schoology's App Center, and click 'My Developer Apps'.
2. Find the SolidProfessor App, then choose 'Options' and then 'Edit'
3. Scroll Down to the section 'Can be installed for;' and un-check the option 'Left Navigation' under 'Courses'.
4. Scroll to the bottom, check the box for Schoology's Terms of Use, and hit 'Submit'.
Now, when you navigate into a Course, Instructors and Students will only be able to view SolidProfessor content from the 'Materials' page in Schoology.