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Session Id : kZVaOrhuFHc3C8QNNDMc5Y
Power Automate - Building Flows
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Calendar ID not found in the store despite ownership rights to calendar

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Posted on 7 Feb 2025 15:23:26 by 6
Hello MS community! 
 
I am trying to setup a simple flow that is designed to mirror the contents of several calendars into a single aggregate calendar. What I am finding is that although I have given myself ownership rights to the aggregate calendar via powershell, it is not appearing in the drop down when selecting a calendar ID, and when using a custom value by inserting the ID retrieved via MS Graph, it still gives me the error: Action 'Create_event_(V4)' failed: The specified object was not found in the store. clientRequestId: af82e5c4-6188-4026-ba06-d145390e55b9 serviceRequestId: 16b8d000-21e1-4580-a454-4f2bc2afd5cf.
 
I'm 1. wondering what determines the contents of the dropdown list in the first place - I assumed it was calendars that the user has ownership over, but that doesn't seem consistent with what I see in the list/what's missing from it, but I assume that if my aggregate calendar is given whatever property it requires it may then show up, and 2. wondering why manually putting in the calendar ID results in a object not found error - a 403 would make more sense to me than a 404 in this case as I have double, triple and then quadruple checked that I had the correct string! 
 
Happy to share further details upon request :) 
  • David_MA Profile Picture
    10,858 Super User 2025 Season 1 on 18 Feb 2025 at 14:18:51
    Calendar ID not found in the store despite ownership rights to calendar
    You need to have at least edit permissions, but delegate permissions would be better. Here is some information from Microsoft: Get shared or delegated Outlook calendar and its events - Microsoft Graph | Microsoft Learn
  • DB-07021212-0 Profile Picture
    6 on 18 Feb 2025 at 14:08:05
    Calendar ID not found in the store despite ownership rights to calendar
    Can you explain what the appropriate permissions should be? I would have thought that having ownership would be more than enough - is there something else specific I should be looking for? 
     
     
  • David_MA Profile Picture
    10,858 Super User 2025 Season 1 on 18 Feb 2025 at 13:55:30
    Calendar ID not found in the store despite ownership rights to calendar
    Since you are not seeing the calendars listed in the drop-down, that would seem to indicate that you do not have the appropriate permissions to access them, which could be the cause of your error. The calendars you have access to should show up in the drop-down of the action:
     
  • DB-07021212-0 Profile Picture
    6 on 18 Feb 2025 at 13:18:58
    Calendar ID not found in the store despite ownership rights to calendar
    The parameters for the create event:
    Here is the raw output when testing in case it's helpful:
    {
        "statusCode": 404,
        "headers": {
            "Cache-Control": "no-store, no-cache",
            "Pragma": "no-cache",
            "Set-Cookie": "ARRAffinity=b9821e690af9852610f8eeeca3309b727f1b53f90b47715d212bd0be30459022;Path=/;HttpOnly;Secure;Domain=office365-ne.azconn-ne-002.p.azurewebsites.net,ARRAffinitySameSite=b9821e690af9852610f8eeeca3309b727f1b53f90b47715d212bd0be30459022;Path=/;HttpOnly;SameSite=None;Secure;Domain=office365-ne.azconn-ne-002.p.azurewebsites.net",
            "Strict-Transport-Security": "max-age=31536000; includeSubDomains",
            "x-ms-request-id": "cbe492e5-b69d-422a-8efa-c3fd7823b7a7",
            "X-Content-Type-Options": "nosniff",
            "X-Frame-Options": "DENY",
            "x-ms-environment-id": "default-3ddb99bd-9e56-4bbf-9c0f-a425bcbea128",
            "x-ms-tenant-id": "3ddb99bd-9e56-4bbf-9c0f-a425bcbea128",
            "x-ms-dlp-re": "-|-",
            "x-ms-dlp-gu": "-|-",
            "Timing-Allow-Origin": "*",
            "x-ms-apihub-cached-response": "true",
            "x-ms-apihub-obo": "false",
            "Date": "Tue, 18 Feb 2025 13:09:02 GMT",
            "Content-Length": "462",
            "Content-Type": "application/json",
            "Expires": "-1"
        },
        "body": {
            "status": 404,
            "message": "The specified object was not found in the store.\r\nclientRequestId: c93b0059-f5c3-41ca-9d50-043426a4dc87\r\nserviceRequestId: cbe492e5-b69d-422a-8efa-c3fd7823b7a7",
            "error": {
                "message": "The specified object was not found in the store.",
                "code": "ErrorItemNotFound",
                "originalMessage": "The specified object was not found in the store."
            },
            "source": "office365-ne.azconn-ne-002.p.azurewebsites.net"
        }
    }
     
    I can see that the issue is with the calendar ID I have supplied, but the calendar ID is 100% correct to my knowledge and my account that it is creating the flow has ownership rights of the associated mailbox. 
  • David_MA Profile Picture
    10,858 Super User 2025 Season 1 on 18 Feb 2025 at 12:36:45
    Calendar ID not found in the store despite ownership rights to calendar
    Please show the configuration of the create event action. 
  • DB-07021212-0 Profile Picture
    6 on 17 Feb 2025 at 14:05:27
    Calendar ID not found in the store despite ownership rights to calendar
    @David_MA Thanks for your quick response and apologies for the slow reply! I was not using that particular trigger and was instead using the 365 event creation trigger, though I imagine that since both are for outlook business it shouldn't make a difference? 
     
     
    I have now tested with the trigger you suggest and find the same issue to occur: 

     
  • Suggested answer
    David_MA Profile Picture
    10,858 Super User 2025 Season 1 on 07 Feb 2025 at 17:29:40
    Calendar ID not found in the store despite ownership rights to calendar
    Since you don't show your flow, I cannot tell if you are using the correct trigger. Are you using a calendar trigger for Outlook.com? If so, that's probably your problem. You need to use this trigger for Outlook for Business:

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