Unable to create event throught Graph API using microsoft exchange 2019 with full hybrid

Question

Post : https://graph.microsoft.com/v1.0/me/events with a token generated getting below issue

{
"error": {
"code": "RequestBodyRead",
"message": "The property 'subject' does not exist on type 'Microsoft.OutlookServices.Event'. Make sure to only use property names that are defined by the type or mark the type as open type. REST APIs for this mailbox are currently in preview. You can find more information about the preview REST APIs at https://dev.outlook.com/.",
"innerError": {
"date": "2022-06-24T08:46:29",
"request-id": "e000f260-3cea-4516-b5e3-dd1bff8ff6b8",
"client-request-id": "e000f260-3cea-4516-b5e3-dd1bff8ff6b8"
}
}
}

Answer 1

Hello @Mahesh Venkatashamappa , please ensure you have a valid Microsoft 365 or Exchange Online license assigned for the target user. If you do and the problem persist, please come back with new response/debugging information.

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Answer 2

Note This is going away in March 2023 :https://techcommunity.microsoft.com/t5/exchange-team-blog/the-end-of-the-rest-api-for-on-premises-mailboxes-preview/ba-p/3221219

I've seen other posts from people seeing issues as well so not sure if everything is still working as expected.