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The Power Automate Outlook 365 “Get event” action is limited because it can only access the calendar of the user who owns the flow. It cannot connect to or retrieve events from other users’ calendars, even if you have access or permissions. This is by design and cannot be modified. [stackoverflow.com]

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Building flows

Hi @KE-18021513-0,

Office 365 Outlook “Get event” reads from the calendar tied to the Outlook connection used by the flow. In practice, that means the mailbox behind the connection (often the flow owner or the account stored in the connection). Flow ownership and calendar permissions do not change what the action reads.

What you can do instead

Run the flow with the mailbox that owns the calendar

Use a dedicated service account.
Grant that account access to the target mailbox calendar (Full Access plus Editor on the calendar, or delegate access).
Build the Outlook connection in the flow using that service account.
Keep all Outlook actions on that same connection.

Use a shared mailbox calendar

Put the events on a shared mailbox calendar.
Connect Outlook actions using an account with access to that shared mailbox.
Use actions that support shared mailbox parameters where available (the ones that ask for “Original Mailbox Address”).

Switch to Microsoft GraphBest option when you need reliable cross-user calendar access at scale.

Use an Entra ID app with application permissions (Calendars.Read or Calendars.ReadWrite).
Call Graph /users/{userId}/events/{eventId} or /users/{userId}/calendar/events.
This avoids the “connection user only” boundary.

If you only need “read events”, avoid “Get event”

Use “Get events (V4)” or “List events” and point it at the specific calendar (calendar id) when the connector supports selecting shared calendars already added under the connection account.

Fast check to confirm your current behavior

Open the flow.
Go to Data > Connections.
Find the Office 365 Outlook connection used by “Get event”.
The account shown there is the mailbox whose calendar gets queried.

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