Cloud Kicks maintains Inventory in a legacy application.

To make inventory data from a legacy application available in Salesforce, the administrator can create an external object that maps to the inventory application. An external object is similar to a custom object, except that it maps to data that’s stored outside your Salesforce organization. External objects enable users to view and report on external data in Salesforce. References: https://help.salesforce.com/s/articleView?id=sf.external _object_overview.htm&type=5