First you will want to make sure you have the Connect Schedule with WH/BlackbaudK12 integration from SchoolDude.

Login to SchoolDude directly with you user name and password to make sure you can login.

Then update the SchoolDude Password in BlackbaudK12
  1. Core
  2. Settings
  3. Integration Settings
  4. SchoolDude
  5. Settings
  6. Edit
  7. Reenter the same password just used to login to Schooldude
  8. If you also want Private events to sync you will also want to check the Private Events box
Ensure the Events are approved in SchoolDude and that the SchoolDude Integration Event Category is checked off in SchoolDude.
The Events will start to sync after about 15-30 minutes.