Webex Meeting to Outlook Calendar Sync

Overview

This flow keeps Webex meetings consistent with Microsoft 365 calendars. On a schedule it reads the organizer's upcoming Webex meetings and upserts a matching Outlook calendar event (with the Webex join link) into a target calendar, removes events for meetings that were cancelled, and posts a run summary to a Teams channel. A Dataverse ledger table holds the Webex↔Outlook event-id mapping so updates and deletes are reliable and re-runs never create duplicates.

Why it matters: Hybrid users who schedule in Webex but live in Outlook double-book or lose the join link. A governed sync gives one reliable schedule with the correct link, plus an auditable mapping table.

Implementation note: the Webex connector (shared_webex) is a messaging/spaces connector — it has no meetings API (no meeting trigger, no GetMeeting). Per the connector-first rule, when no connector operation exists the build falls back to the built-in HTTP action against the Webex REST meetings API (GET /v1/meetings). As a result the flow is a scheduled poll (Recurrence) rather than an event trigger. Outlook and Teams remain fully connector-first.

Use Case

Operations and general business users who create meetings in Webex want those meetings mirrored onto their Outlook calendar, automatically updated when rescheduled, and removed when cancelled — with the schedule surfaced in a Teams channel for visibility.

Flow Architecture

Environment Variables

Connectors & Connections

Connector	API name	Actions used
Office 365 Outlook	shared_office365	V4CalendarPostItem V4CalendarPatchItem CalendarDeleteItem_V2
Microsoft Dataverse	shared_commondataserviceforapps	ListRecords CreateRecord UpdateRecord
Microsoft Teams	shared_teams	PostMessageToConversation

Note — All connections are referenced as solution connection references; the flow is portable between environments as long as a connection is mapped at import time.

Customization Guide

Almost every realistic variant of this flow can be implemented by changing environment variable values. A few cases require small edits inside the flow definition — those are called out explicitly below.

Sync invitees

Use flowlibs_SyncInvitees: when true, populate item/requiredAttendees on the Outlook create/update from the Webex invitees collection (semicolon-separated emails).

Free/busy privacy

Set item/showAs to Busy and replace the body/subject with a generic placeholder if mirroring to a shared calendar.

Recurring meetings

Switch the Webex query meetingType to meetingSeries and expand scheduledMeeting instances per occurrence; map Outlook recurrence accordingly.

Reminders

Set item/reminderMinutesBeforeStart + item/isReminderOn on the create/update.

Poll cadence / window

Adjust the Recurrence interval and flowlibs_SyncWindowDays.

Key Expressions

The flow is intentionally light on Power Fx / WDL gymnastics — the heaviest expressions are the branch-name concatenation and the approval outcome check. They are listed below in the order they appear in the flow.

@{concat(variables('varWebexBase'),'/meetings?meetingType=scheduledMeeting&from=',utcNow(),'&to=',addDays(utcNow(),int(variables('varSyncWindowDays'))),'&max=100')}

@equals(length(coalesce(body('List_Existing_Mapping')?['value'],json('[]'))),0)

@not(contains(body('Select_Current_Webex_Ids'),items('Apply_to_each_synced_mapping')?['flowlibs_webexmeetingid']))

@{concat('Mirrored from Webex. Join link: ',coalesce(items('Apply_to_each_Webex_meeting')?['webLink'],'(none)'))}

["SyncedFromWebex"]

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