A is a unique numeric code provided by Microsoft’s automated activation servers to activate software when an internet connection isn't available or fails. How the Confirmation ID Works
When you select "I want to activate the software by telephone" in the Office Activation Wizard, you are shown an Installation ID. microsoft office confirmation id generator
Instead of hunting for a fake generator, use these official methods. Microsoft Office Confirmation ID (CID) A is a
Microsoft’s activation servers detect anomalies. If you enter a generated (fake) CID multiple times, your product key and hardware ID can be permanently blacklisted. Even a legitimate key you own may become unusable. Do not download or run unknown "activation" tools
When you install Microsoft Office without an internet connection (or if the online activation fails), the software switches to telephone activation. The software runs a mathematical algorithm based on your hardware ID and your product key. The result is a —a long string of numbers.