Hi @Bhuvaneshwari.Balasubramaniam
Messages Graph API and Events Graph API both are different and they have different properties. So you can filter on these properties only at one Graph API at time. As you can see 'attendee' & 'meetingtime' properties are not present in messages documentation, so you cannot filter using these properties in messages Graph API.
Further you can use Event Graph API. To get events based on startdatetime and Subject use this https://graph.microsoft.com/v1.0/me/calendar/events?$filter=start/dateTime eq '2022-07-14T12:30:00Z' and subject eq 'Testing'
Graph API endpoint to filter events. This Graph API will retrieve Events based on Start date '2022-07-21' time '14:30:00' with subject 'Testing'.
Please refer to the below sample request
Hope this helps.
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