The usual failure
The calendar is full. The CRM never saw the booking. No-shows have no recovery. Show rate is a shrug.
What to make true
Every booking creates or updates a contact. Reminders are owned by one system. No-show recovery is automatic. Show rate is weekly.
Worked example
Keep it this plain. A team uses calendly as if buying the software installed the meaning. It did not. The calendar is full. The CRM never saw the booking. No-shows have no recovery. Show rate is a shrug. The move is not a new integration. Every booking creates or updates a contact. Reminders are owned by one system. No-show recovery is automatic. Show rate is weekly.