As stated in the last update, the ability to use multiple Teams accounts at the same time is being implemented in stages for Desktop. Faster tenant switching functionality on the Windows client has been rolled out to the public ring fully, and Mac will begin rolling out soon. Work is in progress on cross-tenant notification improvements, and support for multiple accounts on desktop will follow. We’ll keep you posted!
Note: The ability to use multiple Teams accounts at the same time is supported on iOS & Android today.
Alex & the Teams team
EditedAdrian Sanguineti commented
1. Not experiencing this issue
2. I'm currently not. Using Skype for business for one tenant, Teams for the other tenant so I can be online to both at the same time.
3. I'm a consultant who does development work with multiple teams that are both inside and outside of my organisation, who ideally would like to be available to all Teams I am involved with to assist when they need, and to be involved with conversations.
Hey multi-taskers, we’ve put this into planning. If you’d like to be a test driver of this feature, just sign up here: https://1drv.ms/xs/s!AryUNzh1ogZzif8pDcOcx2pW45I87w