microsoft-graph-apimicrosoft-graph-calendarrecurring-events

Where are the deleted occurrences?

I have a recurring event, repeated 5 days in a row, of which:

enter image description here

If I get all instances of the event (List event instances) with ({{ }} are Postman variables):

https://graph.microsoft.com/v1.0/users/{{UserID}}/calendar/events/{{RecurrEventID}}/instances?startDateTime={{start_datetime}}&endDateTime={{end_datetime}}

This is what's in the result data:

"type": "exception"  on 16/3 with "subject": "Test recurring (master) modi occur"
"type": "occurrence" on 15/3 with "subject": "Test recurring (master)",
"type": "occurrence" on 17/3 with "subject": "Test recurring (master)",
"type": "occurrence" on 19/3 with "subject": "Test recurring (master)",

If I get the specific master event (Get event) with:

https://graph.microsoft.com/v1.0/users/{{UserID}}/calendar/events/{{RecurrEventID}}

there also is no mention of the deleted occurrence (see JSON below).

I also used the List calendar view endpoint, without success.

How can I retrieve the deleted occurrence?
I need this to properly sync with another calendar.

{
"@odata.context": "https://graph.microsoft.com/v1.0/$metadata#users('someone%40somewhere.onmicrosoft.com')/calendar/events/$entity",
"@odata.etag": "W/\"TOKyZMcf20SwxQO/5Vw7WAAC1HM=\"",
"id": "AAMkADI2ZGIwY2FlLTA1NDQtNGFhYi1hNDJmLWEyMGJhZWU5NmM2YgBGAAAAAACrxyqss0H-T5iGuqwSXncoBwB1kc8DNbIxRK3H-NcbpuL8AAAAAAENAABV1BT8PvI4S78XiwEQP4DVAATuyF7pAAA=",
"createdDateTime": "2023-03-15T15:52:37.3104494Z",
"lastModifiedDateTime": "2023-03-15T15:54:06.696Z",
"changeKey": "TOKyZMcf20SwxQO/5Vw7WAAC1HM=",
"categories": [],
"transactionId": null,
"originalStartTimeZone": "W. Europe Standard Time",
"originalEndTimeZone": "W. Europe Standard Time",
"iCalUId": "040000008200E00074C5B7101A82E008000000009063E97D5E57D9010000000000000000100000003E9EF82FC4F68B47AA38749DEC560C23",
"reminderMinutesBeforeStart": 15,
"isReminderOn": true,
"hasAttachments": false,
"subject": "Test recurring (master)",
"bodyPreview": "",
"importance": "normal",
"sensitivity": "normal",
"isAllDay": false,
"isCancelled": false,
"isOrganizer": true,
"responseRequested": true,
"seriesMasterId": null,
"showAs": "busy",
"type": "seriesMaster",
"webLink": "https://outlook.office365.com/owa/?itemid=AAMkADI2ZGIwY2FlLTA1NDQtNGFhYi1hNDJmLWEyMGJhZWU5NmM2YgBGAAAAAACrxyqss0H%2FT5iGuqwSXncoBwB1kc8DNbIxRK3H%2FNcbpuL8AAAAAAENAABV1BT8PvI4S78XiwEQP4DVAATuyF7pAAA%3D&exvsurl=1&path=/calendar/item",
"onlineMeetingUrl": null,
"isOnlineMeeting": false,
"onlineMeetingProvider": "unknown",
"allowNewTimeProposals": true,
"occurrenceId": null,
"isDraft": false,
"hideAttendees": false,
"responseStatus": {
    "response": "none",
    "time": "0001-01-01T00:00:00Z"
},
"body": {
    "contentType": "html",
    "content": "<html>\r\n<head>\r\n<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">\r\n<meta name=\"ProgId\" content=\"Word.Document\">\r\n<meta name=\"Generator\" content=\"Microsoft Word 15\">\r\n<meta name=\"Originator\" content=\"Microsoft Word 15\">\r\n<style>\r\n<!--\r\n@font-face\r\n\t{font-family:\"Cambria Math\"}\r\n@font-face\r\n\t{font-family:Calibri}\r\np.MsoNormal, li.MsoNormal, div.MsoNormal\r\n\t{margin:0cm;\r\n\tfont-size:11.0pt;\r\n\tfont-family:\"Calibri\",sans-serif}\r\na:link, span.MsoHyperlink\r\n\t{color:#0563C1;\r\n\ttext-decoration:underline}\r\na:visited, span.MsoHyperlinkFollowed\r\n\t{color:#954F72;\r\n\ttext-decoration:underline}\r\nspan.E-mailStijl17\r\n\t{font-family:\"Calibri\",sans-serif;\r\n\tcolor:windowtext}\r\n.MsoChpDefault\r\n\t{font-family:\"Calibri\",sans-serif}\r\n@page WordSection1\r\n\t{margin:70.85pt 70.85pt 70.85pt 70.85pt}\r\ndiv.WordSection1\r\n\t{}\r\n-->\r\n</style>\r\n</head>\r\n<body lang=\"NL\" link=\"#0563C1\" vlink=\"#954F72\" style=\"word-wrap:break-word\">\r\n<div class=\"WordSection1\">\r\n<p class=\"MsoNormal\">&nbsp;</p>\r\n</div>\r\n</body>\r\n</html>\r\n"
},
"start": {
    "dateTime": "2023-03-15T09:00:00.0000000",
    "timeZone": "UTC"
},
"end": {
    "dateTime": "2023-03-15T10:00:00.0000000",
    "timeZone": "UTC"
},
"location": {
    "displayName": "",
    "locationType": "default",
    "uniqueIdType": "unknown",
    "address": {},
    "coordinates": {}
},
"locations": [],
"recurrence": {
    "pattern": {
        "type": "daily",
        "interval": 1,
        "month": 0,
        "dayOfMonth": 0,
        "firstDayOfWeek": "sunday",
        "index": "first"
    },
    "range": {
        "type": "numbered",
        "startDate": "2023-03-15",
        "endDate": "0001-01-01",
        "recurrenceTimeZone": "W. Europe Standard Time",
        "numberOfOccurrences": 5
    }
},
"attendees": [
    {
        "type": "required",
        "status": {
            "response": "none",
            "time": "0001-01-01T00:00:00Z"
        },
        "emailAddress": {
            "name": "somewhere Development Extern",
            "address": "someone@somewhere.nl"
        }
    }
],
"organizer": {
    "emailAddress": {
        "name": "somewhere Development Extern",
        "address": "someone@somewhere.nl"
    }
},
"onlineMeeting": null,
"calendar@odata.associationLink": "https://graph.microsoft.com/v1.0/users('someone@somewhere.onmicrosoft.com')/calendars('AAMkADI2ZGIwY2FlLTA1NDQtNGFhYi1hNDJmLWEyMGJhZWU5NmM2YgAuAAAAAACrxyqss0H-T5iGuqwSXncoAQB1kc8DNbIxRK3H-NcbpuL8AAAAAAENAAA=')/$ref",
"calendar@odata.navigationLink": "https://graph.microsoft.com/v1.0/users('someone@somewhere.onmicrosoft.com')/calendars('AAMkADI2ZGIwY2FlLTA1NDQtNGFhYi1hNDJmLWEyMGJhZWU5NmM2YgAuAAAAAACrxyqss0H-T5iGuqwSXncoAQB1kc8DNbIxRK3H-NcbpuL8AAAAAAENAAA=')"
}
Solution

  • cancelledOccurrences where added in beta (back in 2020) https://developer.microsoft.com/en-us/graph/changelog/?search=cancelledOccurrences#8a32aa94-ac63-42d3-b323-5312bfc80a9dbeta I can't say if or when it will make it into the production endpoint. The only other way of getting that data is to parse out the Recurrence blob https://learn.microsoft.com/en-us/openspecs/exchange_server_protocols/ms-oxocal/524aa19d-7bac-4ecd-8afe-0eefe863250f

    You can get the recurrence blob using

    https://graph.microsoft.com/v1.0/me/events/AA...AA=?$expand=singleValueExtendedProperties($filter=id+eq+'Binary+{00062002-0000-0000-C000-000000000046}+Id+0x8216')