pavlo-mazhuha Hello!
A webhook is also a notification that will be sent in the form of data to the url you entered.
Typically, webhooks are used by developers of other applications or services who would like to receive data about notifications from the Ruhavik application and process them on their own server.
You can check in what format the webhook data is received, for example, on the website https://webhook.site/, where you can get a test url to save in the Types of notifications settings. If after that a notification is generated, then on the site you can see the web hook that will be received.