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If you see time slots marked as unavailable on your booking page even though you think you’re free, it’s usually because Lunacal is protecting you from double-bookings or availability rules you’ve configured. This guide helps you identify the most common causes and how to fix them.

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Step 1

“Calendar Conflicts” - If one of your connected calendars already has a booking at that time, lunacal will automatically block that slot to avoid double-booking.
A “calendar conflict” means lunacal detected an existing event in one of your connected calendars during that time — so it blocks that slot on your booking page to prevent overlapping bookings.
Learn how to connect or manage your calendars in the “Adding Calendars to Lunacal” help doc.
lunacal checks availability across all calendars you’ve connected (Google, Outlook, Apple, etc.). Even if one calendar shows free, a conflicting event in another calendar can block the slot. How to find ? Go to Settings → Calendar → Calendars and review all synced calendars.

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Step 2

“Booking Limits” - Check if you’ve set any daily, weekly, or per-event booking limits. These limits can restrict availability even if your calendar is technically open.
Booking limits include things like “maximum bookings per day” or “Advance Bookin Limit” rules. Even if the time is free on your calendar, booking limits may prevent a slot from showing.
How to find ? Go to Event Types → Select your event → Booking Limits.

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Step 3

” Time Interval Between Slots”- Adjust the setting (e.g., 30 minutes). This setting decides the spacing between slots. A larger interval may make it look like more unavailable time than you expect — even though it’s intentional to give you a buffer.
How to find ? Go to “Event Types” → Select your event → Advanced → Time interval between slots. Note: This only changes the gap between slots, not the actual event duration.

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Step 4

“Availability & Exceptions”- Make sure your weekly availability is set correctly and that no exceptions (like holidays or custom rules) are blocking your time.
Availability Exceptions include days off, holidays, or custom rules that block specific dates/times even if your weekly schedule looks open.
How to find ? Go to Event Types → Select your event → Availability.

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Quick troubleshooting

  • Double-booked calendar event: Check all connected calendars for hidden or recurring events.
  • Booking limits seem off: Review your event’s booking limits and notice settings.
  • Availability looks wrong: Check weekly availability and exceptions like holidays.
  • Calendar permissions: Make sure calendars are fully synced and permissions are granted.