Graph api not showing recurring meetings

I've got an issue with the Microsoft Graph API in relation to recurring events. I have been working with both the /me/events and /me/calendarView endpoints and have encountered a limitation that affects the functionality of my application.

Issue Summary:

• When querying both the /me/events and /me/calendarView endpoints for recurring events, they only return the events if the date range includes the start date of the master event of the series.

Endpoints Used:

1. To retrieve events, including the master event:
   GET /me/events?$filter=start/dateTime ge '{start}' and end/dateTime le '{end}'&$orderby=start/dateTime desc

To retrieve occurrences from the calendar view:
GET /me/calendarView?startDateTime={startDate}&endDateTime={endDate}

Certainly, here's a revised email to Microsoft support reflecting the situation with both endpoints:

Subject: Microsoft Graph API - Recurring Events Retrieval Issue

Dear Microsoft Support Team,

I am reaching out for assistance regarding an issue with the Microsoft Graph API in relation to recurring events. I have been working with both the /me/events and /me/calendarView endpoints and have encountered a limitation that affects the functionality of our application, [Your Application Name].

Issue Summary:

• When querying both the /me/events and /me/calendarView endpoints for recurring events, they only return the events if the date range includes the start date of the master event of the series.

Endpoints Used:

1. To retrieve events, including the master event:

bashCopy code
GET /me/events?$filter=start/dateTime ge '{start}' and end/dateTime le '{end}'&$orderby=start/dateTime desc

1. To retrieve occurrences from the calendar view:

vbnetCopy code
GET /me/calendarView?startDateTime={startDate}&endDateTime={endDate}

Expected Behavior: My expectation, based on the API documentation and standard functionality, is that I should be able to retrieve all occurrences of a recurring event within a specified date range, irrespective of the series start date.

Challenge Encountered: Both endpoints require the series start date to be included in the date range to return any recurring events. This behavior restricts access to current and future occurrences of long-standing recurring events and does not align with the expected functionality.

Request for Support: I am seeking clarification on whether this is intended behavior or a possible oversight in the API's design. I would also like to inquire if there are parameters or settings that may enable the retrieval of all instances of recurring events, regardless of the series start date.