If you encounter service disruptions, interruptions, or performance issues, you may need to perform investigations. In the event of performance issues, you should pay particular attention to site design and customizations that have been deployed, especially in SharePoint classic sites.
While extensive troubleshooting techniques for SharePoint Online performance issues are outside the scope of the MS-300 exam, it is important to be familiar with the availability of tools used to investigate issues. Two common tools used in troubleshooting include the Internet Explorer or Microsoft Edge F12 Developer Tools and the third-party tool, Fiddler:
- Internet Explorer F12 Developer Tools are available by pressing F12 while the browser is running.
- Microsoft Edge Developer Tools are available by pressing F12 while the browser is running...
