Troubleshooting is split into sections:

Troubleshooting resource access problems
Troubleshooting display problems
Troubleshooting email problems
Troubleshooting account creation problems
Troubleshooting local directory connections
Troubleshooting access to the administration website
Known quirks with older browsers
SAML interoperability requirements
Creating test accounts
Information for the IT team
Current vendor and publisher access issues
If a publisher informs you of suspected misuse of their products