MS Bookings API Error - POST /solutions/bookingBusinesses/{id}/appointments

Question

Hello,

I am writing to seek assistance with an issue I encountered while using the MS Bookings API. Until this point, the API has worked without issues and I have not made any modifications to my application. When I tried to make a POST request to create an appointment using the API endpoint /solutions/bookingBusinesses/{id}/appointments, I received an internal server error with the following details:

• Status Code: 500
• Error Code: InternalServerError
• Request ID: 13a8d01b-36be-42c0-8ea8-1891af0ad9ee
• Date: 2023-03-27T07:03:22.000Z
• Message: "An internal server error occurred. The operation failed., Unable to cast object of type 'System.Collections.Generic.List1[Microsoft.Exchange.Data.StoreObjects.StorePropertyDefinition]' to type'System.Collections.Generic.ICollection1[Microsoft.Exchange.Data.PropertyDefinition]'."

I have already tried to troubleshoot the issue by reviewing the API documentation and making sure that all required parameters are included in the request, but the error persists. I suspect that there might be an issue with the API itself or the documentation is missing some details.

Could you please investigate this issue and provide me with a resolution? If there is any additional information you need from me, please let me know and I will be happy to provide it.

Thank you for your assistance, Tuukka

Answer 1

Hi @Tuukka Tihekari

I am able to replicate the same when I am using Customer-Id in body while creating appointment.
So as a workaround, I will suggest you to use Body without Customer-id.
Please refer to the below sample screenshot:

Sample Body:

{
    "@odata.type": "#microsoft.graph.bookingAppointment",
    "endDateTime": {
        "@odata.type": "#microsoft.graph.dateTimeTimeZone",
        "dateTime": "2023-04-04T16:30:00.0000000",
        "timeZone": "UTC"
    },
    "serviceId": "service-id",
    "staffMemberIds": [
        "Staff-member-id"
    ],
    "startDateTime": {
        "@odata.type": "#microsoft.graph.dateTimeTimeZone",
        "dateTime": "2023-04-04T16:00:00.0000000",
        "timeZone": "UTC"
    },

   customers@odata.type: "#Collection(microsoft.graph.bookingCustomerInformation)",
    "customers": [
        {
            "@odata.type": "#microsoft.graph.bookingCustomerInformation",
            "name": "Jordan Miller",
            "emailAddress": jordanm@****.com
        }
    ]
}

Also, I would recommend you to raise a support case with Microsoft Graph, a Support Engineer will be able to assist you better. You can raise support ticket from
http://aad.portal.azure.com/ or https://admin.microsoft.com/#/support/requests.

Hope this helps.

If the answer is helpful, please click Accept Answer and kindly upvote. If you have any further questions about this answer, please click Comment.