var clientURL = Xrm.Page.context.getClientUrl();
var req = new XMLHttpRequest()
req.open("GET",encodeURI(clientURL + "/api/data/v8.0/systemusers(4C6A6247-43A9-E511-80CF-000D3A806074)/Microsoft.Dynamics.CRM.RetrieveAllChildUsersSystemUser()?$select=fullname"),true
 
);
req.setRequestHeader("Accept","application/json");
req.setRequestHeader("Content-Type","application/json; charset=utf-8");
req.setRequestHeader("OData-MaxVersion","4.0");
req.setRequestHeader("OData-Version","4.0");
req.onreadystatechange = function () {
    if (this.readyState == 4 /* complete */) {
        req.onreadystatechange 
 
= null;
        if (this.status == 200) {
            var responseJSON = JSON.parse(this.responseText);
            var popstr = "";
            if (responseJSON.value != null && responseJSON.value.length >= 1) {
                for (var i = 0; i < responseJSON.value.length; i++) {
                    popstr += responseJSON.value[i].fullname + ";";
                }
            }
            Xrm.Utility.alertDialog("這個人下屬(含直接下屬和非直接下屬)包括:" + popstr);
        }
        else {
            var error = JSON.parse(this.response).error;
            Xrm.Utility.alertDialog("呼叫函數出錯." + error.message);
        }
    }
};
req.send();

var clientURL = Xrm.Page.context.getClientUrl();
var req = new XMLHttpRequest()
req.open("GET",encodeURI(clientURL + "/api/data/v8.0/WhoAmI()"),"4.0");
req.onreadystatechange = function () {
    if (this.readyState == 4 /* complete */) {
        req.onreadystatechange = null;
        if (this.status == 200) {
            var responseJSON = JSON.parse(this.responseText);
            Xrm.Utility.alertDialog("當前使用者的ID是:" + responseJSON.UserId + ";所屬業務部門ID是" + responseJSON.BusinessUnitId);
        }
        else {
            var error = JSON.parse(this.response).error;
            Xrm.Utility.alertDialog("呼叫函數出錯." + error.message);
        }
    }
};
req.send();