> Portal Navigation: > > - Append `.md` to any URL under `https://dev.wix.com/docs/` to get its markdown version. > - Pages are either content pages (article or reference text) or menu pages (a list of links to child pages). > - To get a menu page, truncate any URL to a parent path and append `.md` (e.g. `https://dev.wix.com/docs/sdk.md`, `https://dev.wix.com/docs/sdk/core-modules.md`). > - Top-level index of all portals: https://dev.wix.com/docs/llms.txt > - Full concatenated docs: https://dev.wix.com/docs/llms-full.txt ## Resource: Introduction ## Article: Introduction ## Article Link: https://dev.wix.com/docs/api-reference/business-solutions/e-commerce/other-services/back-in-stock/back-in-stock-settings/introduction.md ## Article Content: # About the Back In Stock Settings API The Back In Stock Settings API allows you to manage whether a site collects requests from customers to receive back in stock notifications. Learn more about [back in stock notification settings](https://support.wix.com/en/article/wix-stores-notifying-customers-when-products-are-back-in-stock#collecting-customer-requests). ## Before you begin It’s important to note the following points before starting to code: + Back in stock settings only works with [Wix Stores](https://support.wix.com/en/article/wix-stores-about-wix-stores). + To start collecting back in stock notification requests, the `collectionStates` must be set to `true`. Call [Start Collecting Requests](https://dev.wix.com/docs/rest/business-solutions/e-commerce/other-services/back-in-stock/back-in-stock-settings/start-collecting-requests.md) to update collection states. + [Customize the design of the notification email](https://support.wix.com/en/article/wix-stores-notifying-customers-when-products-are-back-in-stock#customizing-the-notification-email) that will be sent. ## Terminology + **Collection state:** The collection state determines whether the selected app is actively collecting requests for back in stock notifications. When the collection state is set to `true`, collecting requests is enabled and customers may request notifications for out of stock products. @sdk_package_setup