Introduction
Add-ons are optional services or features that can enhance existing services in COS Business Engine, such as antivirus software or priority support. This guide will walk you through how to add an existing Add-On Template to an existing service, providing customers with more options during the ordering process.
Solution Overview
In COS Business Engine, adding an Add-On to a service is done through the Admin interface. This allows you to link optional services (add-ons) to the primary service, which customers can select when signing up for or modifying a service.
To begin the process of creating an Add On Service, navigate to the "services" option on the left-hand side of the Business Engine Dashboard.
From the list of services, find and click on the service to which you want to add an Add-On. 
Click the "Links" icon at the top of the Serivces Page and then select the "Addons" option from the dropdown.
From the list, select the appropriate Add-On Template you want to attach to the service (e.g., "In-Home WiFi Optimization"). Once you have selected and configured the Add-On, click Save at the top of the page to apply the changes.