Enterprise Coexistence - MS 365 & Google Collaboration


Technical solutions that allow businesses to coexist as one during mergers and acquisitions.

Cloudiway Coexistence solutions respond to the many challenging and complex scenarios encountered by large companies on a daily basis: Mergers, and acquisitions and other significant changes within companies’ information systems.
It allow end-users to collaborate as if they’re on the same system; a great way to enhance communications between different platforms like Google Workspace (G Suite) and Microsoft 365 with no impact on day-to-day operations.
Key features of Cloudiway Coexistence tools include:

Free/Busy Calendar Coexistence synchronizes the availability between different messaging systems. This allows users to view each other's calendars and schedule meetings without conflicts, even if they are on different platforms.
For example, a Google user can check the Free/Busy time of an Office 365 user using Google’s standard calendar interface. Similarly, an Office 365 user on one domain can check the free/busy time of an Office 365 or Google user on an entirely different domain.

When a Google user wants to know if another user on Office 365 is available, the user creates a meeting request and clicks on the Find a Time tab to see Free/Busy time. Likewise, from Office 365, the user will click on “Scheduling Assistant” to see the Free/Busy time.

  1. Google detects that the other user is not on Google Workspace, then sends the query to Cloudiway
  2. Cloudiway finds the connector and queries Office 365
  3. Office 365 looks up the Free/Busy Calendar info of the user requested from Google
  4. Office 365 received back Free/Busy details
  5. Office 365 sends the Free/Busy response to Cloudiway
  6. Cloudiway sends the details to Google
  7. Google updates the Free/Busy display

You can also use coexistence during mailbox migrations. End users can continue working without interruption.

When a mailbox is migrated, address books are synchronized, the mails are rerouted with forwarders, and free/busy time is available at both the source of the migration and at the target.

Calendar Free/Busy Coexistence can be implemented between two or more remote systems. Currently, the following systems are supported:

  • Office 365/Exchange Online;
  • Google Workspace; and,
  • Exchange On-Premises 2013 and later.

Global Address List Synchronization (GALSYNC) ensures that the global address list is synchronized between the source and target systems. This enables users to search for and access contact information from both platforms, making it easier to communicate and collaborate across systems.

(1) Pull users & groups from source tenant. Contacts and guest users are not pulled out from the source, only users and groups.

(2) Pull contacts ( or Mail users or Guest users ) from the target tenant.

(3) Push new users or groups to target tenant as contacts ( or Mail users or Guest users ) and also push updates to previously created objects.

Note that source groups won’t be recreated as destination groups. Both source users and groups will be recreated at destination as contacts ( or Mail users or Guest users, except for source groups which won’t be recreated as guest users.).

Supported Systems

  • Google Workspace
  • Office 365
  • Exchange on-premises ( 2007 and later )

Even if the new Cloudiway interface is user-friendly, FREE/BUSY & GALSYNC Coexistence toomls are usually a detailed setups that require a high level of competence and experience with mail systems and directories and cannot be sold without Cloudiway consulting services.

At a glance