This document describes a tool called Quantas Classification Upload that allows users to mass update project classifications in Oracle Projects. The tool can load new project classification categories and codes, update existing codes, and delete categories and codes. It provides controls for the upload process, error handling, and an audit trail of loaded files. Using this tool saves time compared to manually updating each project. It allows organizations to efficiently perform large-scale changes to project classifications driven by events like acquisitions, restructuring, or reporting changes.