https://support.google.com/calendar/thread/98473879?hl=en#
I have yet to hear back from Google WorkSpace support's escalation regarding this issue.
--
FYI: I was first alerted to this issue with macOS Apple Calendar application error messages, and indeed, seeing the same error messages :
"Access to account “Google” is not permitted.
The server responded
“403”
to operation CalDAVAccountRefreshQueueableOperation.
"
As I'm also an IT Consultant, with a paid for Google WorkSpace account, with support, I've registered this as a trouble ticket, and hope to have it escalated for resolution.
FYI: I was also able to reproduce this myself, directly, on 2 computers, with 2 different macOS versions, Mojave & Catalina (10.14 & 10.15), on BRAND NEW USER ACCOUNTS, created from scratch (ie: Thus, THERE IS ZERO CACHED DATA, nor account setup of any kind, so, it's all new), entered in my professional Google WorkSpace credentials, and the Apple Calendar application similarly fails to show ANY data at all, nor any error messages.
Hopefully Google WorkSpace support can escalate this issue, and get some attention on it, towards getting this issue resolved, as it appears to be a wide spread issue affecting many users on many different computers and various operating systems.
So, just to be clear, this is GOOGLE server side issues, and not client side, nor cache cleaning, none of which will work.
Thanks,
Daniel
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