TaobaoClient client = new DefaultTaobaoClient(url, appkey, secret);
AliexpressAscpPoItemQueryRequest req = new AliexpressAscpPoItemQueryRequest();
AliexpressAscpPoItemQueryRequest.PurchaseOrderItemQueryDto obj1 = new AliexpressAscpPoItemQueryRequest.PurchaseOrderItemQueryDto();
obj1.setBizType(AE Global请传288000L);
obj1.setPageIndex(1L);
obj1.setPageSize(20L);
obj1.setPurchaseOrderNo("PON123");
req.setPurchaseOrderItemQuery(obj1);
AliexpressAscpPoItemQueryResponse rsp = client.execute(req, sessionKey);
System.out.println(rsp.getBody());

ITopClient client = new DefaultTopClient(url, appkey, secret);
AliexpressAscpPoItemQueryRequest req = new AliexpressAscpPoItemQueryRequest();
AliexpressAscpPoItemQueryRequest.PurchaseOrderItemQueryDtoDomain obj1 = new AliexpressAscpPoItemQueryRequest.PurchaseOrderItemQueryDtoDomain();
obj1.BizType = AE Global请传288000L;
obj1.PageIndex = 1L;
obj1.PageSize = 20L;
obj1.PurchaseOrderNo = "PON123";
req.PurchaseOrderItemQuery_ = obj1;
AliexpressAscpPoItemQueryResponse rsp = client.Execute(req, sessionKey);
Console.WriteLine(rsp.Body);

$c = new TopClient;
$c->appkey = $appkey;
$c->secretKey = $secret;
$req = new AliexpressAscpPoItemQueryRequest;
$purchase_order_item_query = new PurchaseOrderItemQueryDto;
$purchase_order_item_query->biz_type="AE Global请传288000";
$purchase_order_item_query->page_index="1";
$purchase_order_item_query->page_size="20";
$purchase_order_item_query->purchase_order_no="PON123";
$req->setPurchaseOrderItemQuery(json_encode($purchase_order_item_query));
$resp = $c->execute($req, $sessionKey);

curl -X POST 'http://gw.api.taobao.com/router/rest' \
-H 'Content-Type:application/x-www-form-urlencoded;charset=utf-8' \
-d 'app_key=12129701' \
-d 'format=json' \
-d 'method=aliexpress.ascp.po.item.query' \
-d 'partner_id=apidoc' \
-d 'session=689035fe-e05d-4332-85c7-79c5e83cb38b' \
-d 'sign=D557F5D12B05C3A847C3713C963C0F65' \
-d 'sign_method=hmac' \
-d 'timestamp=2025-07-23+21%3A57%3A00' \
-d 'v=2.0' \
-d 'purchase_order_item_query=null'

# -*- coding: utf-8 -*-
import top.api

req=top.api.AliexpressAscpPoItemQueryRequest(url,port)
req.set_app_info(top.appinfo(appkey,secret))

req.purchase_order_item_query=""
try:
	resp= req.getResponse(sessionkey)
	print(resp)
except Exception,e:
	print(e)

pTopRequest pRequest = alloc_top_request();
pTopResponse pResponse = NULL;
pTaobaoClient pClient = alloc_taobao_client(url, appkey, appsecret);
set_api_name(pRequest,"aliexpress.ascp.po.item.query");
add_param(pRequest,"purchase_order_item_query","数据结构JSON示例");
pResponse = top_execute(pClient,pRequest,sessionKey);
printf("ret code:%d\n",pResponse->code);
if(pResponse->code == 0){
	pTopResponseIterator ite = init_response_iterator(pResponse);
	pResultItem pResultItem = alloc_result_item();
	while(parseNext(ite, pResultItem) == 0){
		printf("%s:%s\n",pResultItem->key,pResultItem->value);
	}
	destroy_response_iterator(ite);
	destroy_result_item(pResultItem);
}
destroy_top_request(pRequest);
destroy_top_response(pResponse);
destroy_taobao_client(pClient);

TopClient = require('./topClient').TopClient;
var client = new TopClient({
	'appkey': 'appkey',
	'appsecret': 'secret',
	'REST_URL': 'http://gw.api.taobao.com/router/rest'
});

client.execute('aliexpress.ascp.po.item.query', {
	'purchase_order_item_query':'数据结构JSON示例'
}, function(error, response) {
	if (!error) console.log(response);
	else console.log(error);
})

<aliexpress_ascp_po_item_query_response>
    <result>
        <data_list>
            <erp_purchase_order_item_dto>
                <extend_fields>demo</extend_fields>
                <no_tax_purchase_amount_dec>demo</no_tax_purchase_amount_dec>
                <purchase_amount_dec>demo</purchase_amount_dec>
                <no_tax_purchase_price_dec>demo</no_tax_purchase_price_dec>
                <purchase_price_dec>demo</purchase_price_dec>
                <tax_rate>demo</tax_rate>
                <received_defective_qty>demo</received_defective_qty>
                <received_normal_qty>demo</received_normal_qty>
                <quantity>demo</quantity>
                <title>demo</title>
                <sc_item_id>demo</sc_item_id>
                <purchase_order_no>demo</purchase_order_no>
            </erp_purchase_order_item_dto>
        </data_list>
        <error_code>demo</error_code>
        <error_msg>demo</error_msg>
        <page_index>demo</page_index>
        <page_size>demo</page_size>
        <success>demo</success>
        <total_count>demo</total_count>
    </result>
</aliexpress_ascp_po_item_query_response>

{
    "aliexpress_ascp_po_item_query_response":{
        "result":{
            "data_list":{
                "erp_purchase_order_item_dto":[
                    {
                        "extend_fields":"demo",
                        "no_tax_purchase_amount_dec":"demo",
                        "purchase_amount_dec":"demo",
                        "no_tax_purchase_price_dec":"demo",
                        "purchase_price_dec":"demo",
                        "tax_rate":"demo",
                        "received_defective_qty":demo,
                        "received_normal_qty":demo,
                        "quantity":demo,
                        "title":"demo",
                        "sc_item_id":demo,
                        "purchase_order_no":"demo"
                    }
                ]
            },
            "error_code":"demo",
            "error_msg":"demo",
            "page_index":demo,
            "page_size":demo,
            "success":demo,
            "total_count":demo
        }
    }
}

<error_response>
    <code>50</code>
    <msg>Remote service error</msg>
    <sub_code>isv.invalid-parameter</sub_code>
    <sub_msg>非法参数</sub_msg>
</error_response>

{
	"error_response":{
		"msg":"Remote service error",
		"code":50,
		"sub_msg":"非法参数",
		"sub_code":"isv.invalid-parameter"
	}
}