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Can on-premise exchange outlook mailbox appointment scheduler lookup with office 365 mailbox free-busy appointment

JOE TAM 101 Reputation points
2021-08-25T07:37:17.897+00:00

Dear sir, 

 We have a customer company1 using on-premises exchange 2019 standard edition with mailbox Boss1. It has a Boss2 mailbox in company2 which is using office 365 online server.

 IT received a requirement that is it possible to have a method that Boss1 Outlook of appointment view, which can also lookup the Boss2 of free-busy appointment view. Then they can create meeting easily for work? Such as link up with 2 company organization on exchange etc. ?

Please suggest.
Regards,
Joe Tam

Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
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  1. Kael Yao-MSFT 37,661 Reputation points Microsoft Vendor
    2021-08-26T02:30:58.077+00:00

    Hi Joe.

    You may create an organization relationship in Exchange online to share the free/busy information with an Exchange on-premises organization.

    Here is two links on this topic for your reference:
    Introduction: Organization relationships in Exchange Online
    How to create: Create an organization relationship in Exchange Online

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