Error while creating task. "Does not support untyped value in non-open type"

Question

Hi.
We have a proprietary software that syncs with MS Tasks.
The code used to work fine, but recently we receive an error while saving a new task on graph.microsoft.com.

The API url is the following one: https://graph.microsoft.com/beta/me/todo/lists/<<id>>/tasks
We make a POST call passing the data as follows:

{
"title":"MY TASK TITLE",
"body":
{
"contentType":"html",
"content":"<div>test</div>"
},
"startDateTime":{"dateTime":"2022-07-04T13:00:00","timeZone":"Europe/Rome"},
"dueDateTime":{"dateTime":"2022-07-04T17:00:00","timeZone":"Europe/Rome"},
"isReminderOn":true,
"reminderDateTime":{"dateTime":"2022-07-04T15:00:00","timeZone":"Europe/Rome"}
}

The response is (ids changed for privacy):

{"error":{"code":"invalidRequest","message":"Does not support untyped value in non-open type.","innerError":{"code":"InvalidModel","date":"2022-07-04T11:33:03","request-id":"12345","client-request-id":"67890"}}}

What exactly does "Does not support untyped value in non-open type." mean? What model exactly is invalid?
I tried various variations of the request, adding other fields (categories, importance, status, linkedResources) and trying again. No change in the response error.

Any help would be very appreciated,
thanks in advance.

Daniele

Answer 1

Hi @Daniele Morelli , I noticed that you are using the beta version to make a request, since the beta is mainly used for internal testing of the product, there may be instability, I used beta version to reproduce your problem.

And I tested it locally with the v1.0 version and it can run successfully, so I recommend using the v1.0 version.

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