Calendar issues now account for more support tickets than billing, login, or scheduling questions combined.
It’s rarely a single bug. It’s permissions, multiple calendars, shared ownership, outdated integrations, or “busy” events no one remembers creating.
What’s changed is scale. As soon as a business adds a second person (or a second calendar) the mental model breaks. What used to be “my calendar” becomes “our system,” and assumptions start to fail.
Signal, not solution
Calendar reliability has become a trust issue, not a technical one.