Is tentative accept API is eligible in case of client credential flow

Sushil Hurmade 0

https://graph.microsoft.com/v1.0/users/7f352384-c3f7-4cef-9ca2-763801d93fb5/calendars/AAMkAGY3ZTliMjI2LTU4ZGMtNDcyMi05MTg1LTFlMmU5ODYyOTYzYwBGAAAAAACxZzGoCQBySLlRkEgjL65WBwCBVSfFGwiNTYooo3OtH8qGAAAAAAEGAACBVSfFGwiNTYooo3OtH8qGAAEloJzVAAA=/events/AAMkAGY3ZTliMjI2LTU4ZGMtNDcyMi05MTg1LTFlMmU5ODYyOTYzYwBGAAAAAACxZzGoCQBySLlRkEgjL65WBwCBVSfFGwiNTYooo3OtH8qGAAEloCiAAACBVSfFGwiNTYooo3OtH8qGAAEloQ2cAAA=/tentativelyAccept

on firing this api getting below error :

{
    "error": {
        "code": "ErrorItemNotFound",
        "message": "The specified object was not found in the store."
    }
}

Is tentative accept work only in case of authorization flow not in case of client credential?
Note: the url can have missing sensitivity data

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