Error when signing in: Browser restrictions prevented us from creating the dialog box
If you are using the web browser edition of Outlook you might encounter some browsers that prevent the login popup required to run TemplateManager365.
You will need to enable the popups for TemplateManager365 to work. See below for a guide for different browsers.
Brave / Chrome
When a popup is blocked a small icon appears on the right of your URL bar.
For Edge please see this Microsoft help page.