Office365 在Microsoft Bookings中创建联系人失败

我正在使用Microsoft Graph REST Beta API调用：

POST https://graph.microsoft.com/beta/bookingBusinesses/{id}/customers 

带车身有效载荷：

{
    "displayName": "User Name",
    "emailAddress": "email%40eventhorizon.llc"
}

我得到了201的回复（成功）。但是当我查看接口时，Bookings中的数据被破坏了，JSON响应也被破坏了，它有一封空白的电子邮件，等等。尽管我将这些数据发送到了API。谁能告诉我我做错了什么

JSON响应（注意它在ODATA中拾取电子邮件地址）：

Java代码：

        IAuthenticationResult auth = msft.getAuth();
        String accessToken = auth.accessToken();
        URL url = new URL(urlString);
        conn = (HttpURLConnection) url.openConnection();

        conn.setRequestProperty("Content-Type", "application/json");
        conn.setRequestProperty("Authorization", "Bearer " + accessToken);
        conn.setRequestProperty("Accept", "application/json"); 
        conn.setRequestMethod(method);
        if (method.equalsIgnoreCase("POST") || method.equalsIgnoreCase("PUT")) {
            conn.setRequestProperty("X-HTTP-Method-Override", "PATCH");
            conn.setDoOutput(true);
            String str = payload.toString();
            OutputStream out = conn.getOutputStream();
            out.write(str.getBytes());
            out.flush();
        }

        httpResponseCode = conn.getResponseCode();

        IAuthenticationResult auth = msft.getAuth();
        String accessToken = auth.accessToken();
        URL url = new URL(urlString);
        conn = (HttpURLConnection) url.openConnection();

        conn.setRequestProperty("Content-Type", "application/json");
        conn.setRequestProperty("Authorization", "Bearer " + accessToken);
        conn.setRequestProperty("Accept", "application/json"); 
        conn.setRequestMethod(method);
        if (method.equalsIgnoreCase("POST") || method.equalsIgnoreCase("PUT")) {
            conn.setRequestProperty("X-HTTP-Method-Override", "PATCH");
            conn.setDoOutput(true);
            String str = payload.toString();
            OutputStream out = conn.getOutputStream();
            out.write(str.getBytes());
            out.flush();
        }

        httpResponseCode = conn.getResponseCode();