# How do I block a slot or set an unavailability?

URL: https://help.sweb.so/en/pro/calendar/block-a-time-slot
Mis à jour: 2026-07-03T00:00:00.000Z

From the calendar, click the **+ New** CTA and choose **Block time**. A panel opens with two modes: "Whole day" or "Time range." Fill in the date (and the hours if you pick a range), add a reason if you like, then save: the blocked area shows up grayed out on the grid right away.

## Open the block panel

The main CTA in the calendar toolbar offers a two-item menu once time blocking is available: "New appointment" and "Block time." On mobile, the same choice opens as a bottom sheet.

## Choose the block mode

- **Whole day**: you block an entire date. If the day is empty, it becomes a day off. If appointments are already booked that day, the block is spread automatically across the remaining free ranges around those appointments: you don't lose any already confirmed appointment.
- **Time range**: you pick a specific date and a start and end time. Useful for training, a personal appointment, or a one-off closure of a few hours.

## Add a reason

An optional reason field lets you keep track of why you blocked the time (time off, training, medical appointment...). This reason then shows on the grayed-out block in the grid, useful for you or the rest of the studio team.

## What happens after saving

The blocked range shows up immediately grayed out on the calendar grid, on the right date. A client can no longer book that slot, whether from your dashboard or from your online booking page. The block stays editable or removable at any time by clicking on it.

## Edge cases

**An appointment is already booked on the day you want to block.** Nothing gets overwritten: the system automatically splits the block around existing appointments, which stay visible and confirmed.

**The block refuses to save.** Check that it doesn't overlap an appointment already confirmed on that exact time range: a safeguard prevents blocking a slot that already contains an appointment.

**You just want to adjust your lunch break.** That's not a regular block: the lunch break has its own, faster setting, directly from the block shown on the grid.

**You want to edit or remove an existing block.** Click directly on the grayed-out block in the grid: the edit panel opens with the same fields, plus a delete option.