We have are based in Australia and have a new office in London. Due to GDPR, we are keeping UK data hosted in the UK, meaning we need to create a new Office 365 tenant for them. We are too small (<2500 users) to use Office 365 Multi-Geo.
Multi-tenancy has a few issues, such as needing guest accounts to access each others Teams, tenant specific accounts to access shared mailboxes, etc.
If you are in a similar situation, how are you handling collaboration and communications between tenants?
