post https://app.indexexchange.com/api/supply-configuration/v1/sites
Creates a site ID in the Index UI for an existing publisher account. The response includes the site ID which you can use to make real-time bid requests.
Note: By default, when Index creates an account for you, an initial site ID is automatically generated for the approved domain or property in the Index UI. You can use this route to create additional site IDs for the approved domain or property.