Due Microsoft accounts have limited how many license can you add, I created more than one account with e-mail alias. Then I registered the Office key, but the most important is take note of which installation you install where. So, I created a simple table, with the key number in the card, with the PC name (and serial), and also, the Microsoft site shows other key number. Important also take care the order of installation, because there you won't see any description, you will see only a list: Office, Office (2), Office (3), ... and is important to know, because in case of reinstall, for activate, you must select which register belong to this concretely PC. Thanks God I don't have so many workstation with Office, but bigger network can be really a headache. Finally, I have a table with this columns:
- Key card number
- Key online number
- PC serial number
- Installation order (first, second, etc.)
- Account number under is registered the installation (usually an e-mail address)