I'm using Thunderbird 68.11.0 on Fedora32 with Provider for Google Calendar and Lightning installed, on regular GMail/Google Calendar, not G-Suite. I would like to be able to do the following: * Use my business email address (user@mycompany.com) to create and share and modify calendar invitations with colleagues and be able to sync it with my user@gmail.com account. My business email address is associated with my user@gmail.com account. * Share my calendar with co-workers and others on the Internet * Invite others using my user@mycompany.com address instead of the user@gmail.com account. I've set up my "Location" as: googleapi://user@mycompany.com/?calendar=user%40gmail.com I'm able to connect with my user@gmail.com address on Thunderbird, but not able to accept incoming addresses using Thunderbird. Currently when trying to accept an invitation, Thunderbird reports "No writable calendars are configured for invitations, please check the calendar properties," despite it saying the calendar is writable in "properties". What am I doing wrong? Is it possible to create invitations as user@mycompany.com and be able to share that calendar with others so they see it as user@mycompany.com and not my user@gmail.com address?