Graph API Calendar return 404 not found

Harry Huang (Crystal Group) 1 Reputation point


This is Exchange on-premises server mailbox account, and it does not have an Exchange Online mailbox. I suppose the API can work in hybrid deployments?

*If I use another O365 account to login and try to get this mailbox schedule via "/calendar/getSchedule", it works.

Microsoft Graph
Microsoft Graph
A Microsoft programmability model that exposes REST APIs and client libraries to access data on Microsoft 365 services.
10,496 questions
Microsoft Exchange Hybrid Management
Microsoft Exchange Hybrid Management
Microsoft Exchange: Microsoft messaging and collaboration software.Hybrid Management: Organizing, handling, directing or controlling hybrid deployments.
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  1. Vasil Michev 94,521 Reputation points MVP

    In order for the Graph to be able to access on-premises data, you need to configure integration as detailed here: