URL            = "https://b24-ar17wx.bitrix24.by/rest/1/ps5...";
    NotificationID = "28858";

    Result = OPI_Bitrix24.DeleteNotification(URL, NotificationID);

    URL            = "b24-ar17wx.bitrix24.by";
    Token          = "a8e65667006e9f06006b12e400000001000...";
    NotificationID = "28860";

    Result = OPI_Bitrix24.DeleteNotification(URL, NotificationID, Token);