A custom product is your own product or service that you add into your platform only.
These products and services are provided by you to your own clients and will never be visible in any other platforms Marketplace.
Your custom products are not integrated into your platform, however you can direct your customers to your own product page or login URL via the Business Center with a custom URL, once they have purchased your custom product.
Entering a General sign-in URL will direct all customers who have purchased your product to a single web-page/login page on your end.
Selecting Account-specific URLs means that you will enter a URL unique per account upon activating your product or service for each account.
More descriptive details can be seen by hovering over the "What's this?" text below the URL fields.
Click here for more details on the difference between your custom products and third party Marketplace products.