Book days
SimplyBook.me has no option of booking days, however, there is a workaround, please check if these options are suitable for your business.
Multiple services
1. In Settings // General Settings // Configuration // Allow service to extend over breaktime and Allow service to extend over closing hours.
2. In Manage // Services // "+" button create service with the duration corresponding to the amount of days your service will be offered for (3 days=3 hours, 7 days=7 hours).
3. In the Time settings // Company opening hours (when you have only 1 service) or in the working hours of this service (Time settings // Service schedule or Manage//Services//select the service//Service schedule) open only 1 hour each day.
4. The system will then book the number of hours indicated in service duration as the number of days.
5. For your clients this setup will look in the following way:
Single service with the use Add-ons
1. In Settings // General Settings // Configuration // Allow service to extend over breaktime and Allow service to extend over closing hours.
2. In Manage // Services // "+" button create service with the duration corresponding to the amount of days your service will be offered for initially (3 days=3 hours, 7 days=7 hours).
3. Enable "Service add-ons" custom feature inside the tab on the Services page or in Custom features section.
4. In Manage -> Service add-ons create all the desired additional duration options.
5. (optional) Relate the Add-ons to the services if necessary and you have some specific additional duration options per service.
6. In the Time settings // Company opening hours (when you have only 1 service) or in the working hours of this service (Time settings // Service schedule or Manage//Services//select the service//Service schedule) open only 1 hour each day.
7. Here you can see how this way will look like on the client side
(they will select the main service first and then choose the additional duration if they need to):