Are you trying to install and use the Calendly app but receiving a message that it is disabled?

Unfortunately, Calendly is currently one of the 3rd party apps that is not approved for integration with McMaster M365 apps due to privacy, security, and support concerns.  A list of approved apps can be found here:

•  Microsoft 365 and Zoom Third Party Apps and Integrations (sharepoint.com)

As an alternative, you can make use of Microsoft Bookings, which is a comparable application and similar to Calendly but is included with our existing Microsoft apps.

 For more information on Bookings, please visit:

•  https://office365.mcmaster.ca/office-365-3/applications/bookings/