Microsoft announce that multi-tenant organisation (MTO) capabilities within Microsoft 365 are now generally available. These capabilities aim to enhance an organisation’s collaboration and communication activities across multiple tenants using Teams and Viva Engage. From a licensing perspective only one Microsoft Entra ID Plan 1 licence is required per employee per multi-tenant organisation, and a Viva Suite or Employee Communications & Communities User SL is required for the MTO capabilities in Viva Engage.

Find the announcement here: https://bit.ly/3wkgMmB, and use this site for a good explanation of the different options for organisations with more than one tenant: https://bit.ly/3QjywW8.