There is a distinction between Microsoft Office 365 Pro Plus, and Microsoft Office 20xx Pro Plus.
The former is an "enterprise" subscription product, and the latter a one-off purchase.
See below for Microsoft's explanation re, for example, the 2021 version:
Microsoft 365 (Office Pro Plus) is a subscription that comes with premium apps like Word, Excel, PowerPoint, OneNote, Outlook, Publisher and Access (Publisher and Access available on PC only). The apps can be installed on multiple devices, including PCs, Macs, iPads, iPhones, Android tablets and Android phones. Microsoft 365 also comes with services like 1 TB of OneDrive storage, 60 Skype minutes per month and Microsoft chat and phone support. With a subscription, you get the latest versions of the apps and automatically receive updates when they happen.
Microsoft Office 2021 (Pro Plus) is a one-time purchase that comes with classic apps like Word, Excel and PowerPoint for PC or Mac, and does not include any of the services that come with a Microsoft 365 subscription. One-time purchases don’t have an upgrade option, which means if you plan to upgrade to the next major release, you’ll have to buy it at full price.
It's almost 20 years since I was Microsoft's second biggest customer in the UK, and did their first UK Enterprise Agreement, so I'm well out of touch, (even then it was a nightmare keeping track of MS's product and licence changes) but I would be much more confident that second-user use of the purchased version, rather than the subscription version, was a legal arrangement. (Any key for the "365" subscription version would be tied to a wider, corporate agreement and usage, and continued subscription therefor.)
Other "key-resellers" I've checked don't seem to be offering the "365" version, but do offer the purchased version (at a higher price, albeit much less than full retail).
|