This release supports multiple accounts. It is a very major change to the code, so use with care. Documentation can be found on the 'multiple-accounts' branch of this GitHub repository. Existing installations should work as is.

For services, where previously the calendar_id has been used, I'm migrating this to use entity_id for calendar updates. A warning will be shown in the logs if you use calendar_id. For notifications, multiple services will be created if required for each account emails can be sent through.

https://github.com/RogerSelwyn/O365-HomeAssistant/blob/multiple-accounts/README.md

Primary changes from Alpha 7

• Correction for handling of DST
• Improved event selection for root event
• Implement fix for breaking change coming in HA
• Remove throttle on root event updates

I'm open to suggestions on changes to how this works. Please post here if you have any suggestions - Multiple Accounts