Which of the following is NOT a necessary item before proceeding with UAT?

Customer feedback on previous projects is not a necessary item before proceeding with User Acceptance Testing (UAT) because UAT focuses specifically on the acceptance of the current project or system being delivered by the stakeholders. The primary aim of UAT is to validate that the end product meets business requirements and is ready for deployment, which involves the target users or clients testing the system in real-world scenarios.

In contrast, items such as Quality Assurance approval, configuration satisfaction by the Project Team, and completion of individual testing by the Project Team are critical steps that ensure the system is functioning correctly before it is presented to the users for acceptance. These steps are typically part of the quality assurance process that helps to mitigate issues and ensure a smoother UAT phase, where the stakeholders are not burdened by basic functionality problems.