Question:

What needs to be configured for a user to view Calls in My Schedule where they are added as an Attendee?

Answer:

If the ORG is set up to allow users to be added as an Attendee, there is no additional configuration needed to allow the user that is an Attendee to see the Call in My Schedule. Also, hierarchy does not play a factor in whether the user is able to see the Call or not in these instances. The user needs visibility to the Account for it to display.

Related Documentation:

NA

Thank you