This documents the webhook payload that Host Tools will POST to your configured webhook URL when a listing group is added, changed or deleted.

Note: This is not an API endpoint you call.
This documents the requests that Host Tools sends TO your webhook URL.

When triggered:

• listingGroup.created: a listing group is created
• listingGroup.changed: a group's name, access code, owner import link or listings change. The payload has the group's full current listingIDs; compare it with your copy to see which listings joined or left. Several edits within 30 seconds are sent as one webhook with the latest data.
• listingGroup.deleted: a listing group is deleted

Handling the webhook:

1. Your endpoint should respond with HTTP 200 status
2. Process the data asynchronously if needed
3. Respond within 30 seconds