As John ran the tool, it prompted him to select the Office version and enter some details about the installation. After providing the required information, the tool generated a new Confirmation ID.
For Office 2019 and newer (including Microsoft 365), the Confirmation ID system is largely obsolete. Simply: Microsoft Office Confirmation Id Generator
A unique ID displayed in the activation wizard for phone activation. Microsoft Q&A Confirmation ID As John ran the tool, it prompted him