Send guests their updated meeting invitations with the new joining details.
Resend corrected invitations for changed remote bookings.
Guests get the current video link in their meeting invitation, and you get an email showing what changed.
Send one added guest the latest invitation from the calendar.
Your new guest gets the current meeting time and joining details by email, while you get a confirmation without emailing the other guests.
Match change requests to meetings and send revised invitations.
Your meeting invitation carries revised joining details, and your colleague gets a reply showing which guests were included.