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## Resource: Introduction

## Article: Introduction

## Article Link: https://dev.wix.com/docs/api-reference/business-solutions/bookings/policies/booking-policy-snapshots/introduction.md

## Article Content:

# About the Booking Policy Snapshots API

A booking policy snapshot is a saved version of a service's booking policy at the time a [booking](https://dev.wix.com/docs/rest/business-solutions/bookings/bookings/about-the-bookings-apis.md)
is created. This is important because a policy may change after a customer
books the service, and having a snapshot preserves the original terms.

The Booking Policy Snapshots API allows you to retrieve policy snapshots.

For managing cancellation fees, you may also want to explore the [Booking Fees API](https://dev.wix.com/docs/rest/business-solutions/bookings/pricing/booking-fees/introduction.md).

## Before You Begin

It’s important to note the following points before starting to code:

- Every booking with corresponding [eCommerce order](https://dev.wix.com/docs/api-reference/business-solutions/e-commerce/orders/orders/introduction.md)
  has exactly one policy snapshot. Bookings without a related eCommerce order don't have
  a policy snapshot.
- You can't create a booking policy snapshot with the Booking Policy Snapshots
  API, you can only retrieve policy snapshots. However, you could call [Get Booking Policy](https://dev.wix.com/docs/rest/business-solutions/bookings/policies/booking-policies/get-booking-policy.md)
  to retrieve a service's booking policy just before or after creating a
  booking.

## Use Cases

- [Notify business owners of bookings under outdated policy](https://dev.wix.com/docs/rest/business-solutions/bookings/policies/booking-policy-snapshots/sample-flows.md#notify-business-owners-of-bookings-under-outdated-policy).

## Terminology

- **Booking policy**: Rules set by the business owner regarding the booking and
  cancellation of a service. Policies may include advance booking restrictions,
  cancellation deadlines, associated fees, and the maximum number of participants
  allowed.
- **Booking policy snapshot**: The version of a service's booking policy saved
  at the time a booking is created. Snapshots preserve the original terms, which
  is useful if policies change after a booking is made.

For a comprehensive glossary of Wix Bookings terms, see [Terminology](https://dev.wix.com/docs/rest/business-solutions/bookings/terminology.md).

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