I’ve handled this exact VAPI issue before—usually the assistant is sending a confirmation but the event isn’t actually being written to the calendar due to a webhook or field-mapping mismatch. I can help you audit the flow, trace the booking logic, and validate the calendar tool’s request/response to see where it breaks. My approach is to replicate the bug, review the assistant’s actions, and patch the integration so confirmations only fire after a real event is created. Quick question: are you using Google Calendar, Outlook, or a custom integration? That determines where to start the diagnosis. @Rob