: Select "I want to activate the software by telephone".
While some third-party sites claim to offer "generators," these are often unofficial web tools that simply act as an interface for Microsoft’s own self-service activation system. how to get confirmation ID? - Microsoft Q&A microsoft office 2016 confirmation id generator
To officially generate a Confirmation ID, you must use Microsoft's built-in : : Select "I want to activate the software by telephone"
: The automated system will verify your Installation ID and read back your Confirmation ID , which you then enter into the wizard to finish activation. Understanding "Confirmation ID Generators" microsoft office 2016 confirmation id generator