How sign in works in Microsoft 365 - Microsoft Support
https://support.microsoft.com/en-us/office/how-sign-in-works-in-microsoft-365-1d646e83-1585-4278-8daf-d4a2cc0905e0
webWith Microsoft 365, you can install Office on all your devices and sign in to Office on five devices at the same time. This includes any combination of PCs, Macs, tablets, and phones. Get help signing in to Office. Here's what you need to know. Here are some tips for using Microsoft 365 on multiple devices:
DA: 72 PA: 51 MOZ Rank: 80