In sales processes, you often have to involve your colleagues. It's a great feature in Pipedrive to be able to add them to the Activities ore give them Activities like sales meetings to perform
BUT you can only access your own to-Pipedrive-synced calendar. So you don't have a clue if your colleagues are available when you invite them.
SO the suggestion is to ad a way to see you colleagues calendars inside Pipedrive. They have already synced them into it - so it should be possible.