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## Resource: About Service Types

## Article: About Service Types

## Article Link: https://dev.wix.com/docs/api-reference/business-solutions/bookings/services/services-v2/about-service-types.md

## Article Content:

# About Service Types: Appointments, Classes and Courses

Wix Bookings supports 3 types of services: appointment-based, classes, and
courses. Depending on business needs, you can set up services for all or only
the relevant types.

## Appointments

Appointments allow customers to book services at their preferred time during the
business hours. For example, a hair salon might offer different appointment-based
hair cutting and styling services. Appointments appear in the booking calendar once
they're booked by a customer. Not-yet-booked times during the business hours
are displayed as available slots to potential customers while booking.

### Varied service durations
 
You can use the [Service Options And Variants API](https://dev.wix.com/docs/rest/business-solutions/bookings/services/service-options-and-variants/introduction.md)
to set different session durations for the same appointment-based service. For
example, 30, 45, or 60-minute shiatsu massages. You can find a service's
complete list of supported session durations in the [Services V2 API](https://dev.wix.com/docs/rest/business-solutions/bookings/services/services-v2/introduction.md)
as `service.schedule.availabilityConstraints.sessionDurations`.

### Staff members

You can allow customers to select their preferred staff member when booking an appointment-based service. Use the [Staff Members API](https://dev.wix.com/docs/api-reference/business-solutions/bookings/staff-members/staff-members/introduction.md)
to manage staff and their working schedules.

Appointment services require at least one staff member when [creating](https://dev.wix.com/docs/rest/business-solutions/bookings/services/services-v2/create-service.md) them. Pass the staff members' resource IDs in the `staffMemberIds` array. These are `staffMember.resourceId` values, not `staffMember.id`. [Query staff members](https://dev.wix.com/docs/api-reference/business-solutions/bookings/staff-members/staff-members/query-staff-members.md) with the `RESOURCE_DETAILS` field set to retrieve the `resourceId`.

Check service and staff member availability with the [Time Slots V2 API](https://dev.wix.com/docs/api-reference/business-solutions/bookings/time-slots/time-slots-v2/introduction.md).
Specify a filter based on the slots's `startDate`, `endDate`, `serviceId`, and staff member's `resourceId`.

### Customer locations

You can allow customers to choose their appointment location, for example
their home or office. When calling [Create Service](https://dev.wix.com/docs/rest/business-solutions/bookings/services/services-v2/create-service.md), include a location with `{"type": "customer"}`.

### Buffers between sessions

You can configure a service so that it ensures buffer times between appointments.
For example, you can specify a 10-minute buffer between appointments for a hair
coloring service. Call [Create Service](https://dev.wix.com/docs/rest/business-solutions/bookings/services/services-v2/create-service.md),
and specify `schedule.availabilityConstraints.timeBetweenSessions`.

### Appointment policies

Manage booking, rescheduling, cancellation, and other rules using the [Booking Policies API](https://dev.wix.com/docs/api-reference/business-solutions/bookings/policies/booking-policies/introduction.md).

In the [Services V2 API](https://dev.wix.com/docs/rest/business-solutions/bookings/services/services-v2/create-service.md)
you can check whether customers are allowed to:
- reschedule their appointments (check `service.bookingPolicy.reschedulePolicy`).
- cancel their appointments and/or limit the time frame for cancellations
  (check `service.bookingPolicy.cancellationPolicy`).

## Classes

A class is a single event or a series of recurring events that multiple customers
can book. For example, a yoga studio might offer a twice-weekly vinyasa flow
class. Classes may have a set end date or continue indefinitely. If a class
includes more than a single event, customers can sign up for 1, several, or all
of the events. Upon creation, classes are listed immediately in the booking
calendar.

### Class policies

Manage booking, rescheduling, cancellation, and other rules using the [Booking Policies API](https://dev.wix.com/docs/rest/business-solutions/bookings/services/services-v2/update-service.md).

In the [Services V2 API](https://dev.wix.com/docs/rest/business-solutions/bookings/services/services-v2/create-service.md)
you can check whether customers are allowed to sign up for a waiting list when a
class is fully booked (check `service.bookingPolicy.waitlistPolicy`).

## Courses

A course starts and ends on pre-defined dates with a limited number of events
that multiple customers can book. For example, a yoga studio might offer a
teacher training course with 5 events. In contrast to classes, customers must
book the entire course. Upon creation, courses are displayed immediately in the
booking calendar.

In the [Services V2 API](https://dev.wix.com/docs/rest/business-solutions/bookings/services/services-v2/create-service.md)
you can check a course's start and end in `service.schedule.firstSessionStart`
and `service.schedule.lastSessionEnd`.

### Course policies

Manage booking, rescheduling, cancellation, and other rules using the [Booking Policies API](https://dev.wix.com/docs/rest/business-solutions/bookings/services/services-v2/update-service.md).

In the [Services V2 API](https://dev.wix.com/docs/rest/business-solutions/bookings/services/services-v2/create-service.md)
you can check whether customers can continue to sign up for a course after its
first session has begun (check `service.bookingPolicy.bookAfterStart`).

## Update a service type

You can update a service's `type` if there are no upcoming events with
participants, but it's recommended to create a new service instead.

Changing a service type by calling [Update Service](https://dev.wix.com/docs/rest/business-solutions/bookings/services/services-v2/update-service.md)
deletes the service’s existing schedule and creates a new one.