In 2006, its first free open-source product, Coupa Express, was built using RoR.Antone Gonsalves, InformationWeek. "Coupa Brings Amazon.com Look To E-Procurement." March 21, 2007. Retrieved January 30, 2012. In 2007, the company launched a SaaS (Software-as-a-service) product called Coupa On Demand for SMBs (small and midsize businesses).
