retrieve all events for a given periode

Hi Sirine

Thank you for reaching out to Microsoft Q&A Forum and sharing your experience.

The calendarView endpoint is designed specifically to expand recurring meetings into individual instances within a specified time range. By default, Microsoft Graph limits the number of results returned per response (often defaulting to just 10 items). If your time range is a full year, you likely have hundreds of events.

I tested this query on my end. To retrieve more data in a single call, you should add the $top query parameter. The maximum value is 1000. Please try this updated query:

GET https://graph.microsoft.com/v1.0/me/calendarView?startDateTime=2025-01-01T00:00:00Z&endDateTime=2025-12-31T23:59:59Z&$top=1000

I reproduced this on my end to verify the solution. First, I have populated the calendar with many recurring daily events for 1 month:

Then I ran the command provided above:

For further reading on how to handle these specific scenarios, you can check these resources:

• calendar - Is Microsoft Graph API calendarView limited to a single month? How to get all events? - …
• How to get instances of recurrent calendar event for Microsoft Graph

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To retrieve all events for a given period using the Microsoft Graph API, you can use the calendarView endpoint as you have done. However, it's important to note that the calendarView endpoint only returns events that occur within the specified time range, and it may not include all instances of recurring events. Recurring events are typically returned only as a single instance unless you specifically request all occurrences.

To ensure that you retrieve all instances of recurring events, you might want to consider using the delta query functionality, which allows you to track changes to events over time, including new, updated, or deleted events. This can help you maintain a complete and up-to-date view of all events, including recurring ones.

For your specific case, you can also check if there are any limitations or settings in the user's calendar that might affect the visibility of events. If certain events are not showing up, it could be due to permissions or the way the events are configured in the calendar.

If you continue to experience issues, reviewing the API documentation for any updates or changes regarding how recurring events are handled might be beneficial.

References:

• Get incremental changes to events in a calendar view
• Use the Microsoft Graph API