> For the complete documentation index, see [llms.txt](https://docs.simplespa.net/simplespa-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.simplespa.net/simplespa-documentation/extras/faq/how-does-simplespa-handle-double-booking-for-online-appointments.md).

# How does SimpleSpa handle double booking for online appointments?

How SimpleSpa checks availability so online clients cannot book a time slot that is already taken.

When a client books online, SimpleSpa checks the time and duration of the requested appointment against the staff member's schedule to confirm the slot is actually available.

If the selected time is not available, SimpleSpa simply tells the client so. Unlike other software, it does not show any more information about your scheduled appointments.

Double booking is available by default, and you can add as many double-booked appointments as you need within SimpleSpa.

## Related

* [Does SimpleSpa Support Parallel Bookings](/simplespa-documentation/extras/faq/does-simplespa-support-parallel-bookings.md)
* [My online booking is not showing availability although I am available in my calendar](/simplespa-documentation/extras/faq/my-online-booking-is-not-showing-availability-although-i-am-available-in-my-calendar.md)