If you are new to tracking, you probably also want to track the Appointments to Dynamics as well.
Whether this is enabled for you or not is an optional setting and you end up seeing this error message – 
Enable Tracking for Appointments, Tasks & Contacts
- One of the first places to go and check for Admins when someone reports such an issue is to check if the Appointments, Contacts or…
Continue Reading priyeshwagh777’s Article on their blog
Track and Set Regarding are disabled for Appointments in Dynamics 365 App For Outlook message | Demystified – D365 Demystified
Here’s how you can enable Track and Set regarding for Appointments, Contacts and Tasks in Dynamics 365 App For Outlook!
Blog Syndicated with priyeshwagh777’s Permission