PMP Exam Simulator

Steven is a project manager of the project to develop a new software to be used by three channels of an audio company. His project was consistently on time and budget. The stakeholders approved prototypes of the software. But when the completed software was installed and beta tested, a problem was discovered. The software performed as expected on in-store and call center-assisted purchases, but it turned out incompatible with other software necessary for online transactions. As a result, the customer refused to accept the final deliverable. What did Steven and his team fail to do?