使用Mailchimp API 3.0添加电子商务订单时总是出现404错误

我们正在将Mailchimp实现从1.3更新到3.0。我们成功地更新了代码，为某人订阅了列表。现在我们正在尝试添加电子商务订单。在API v1.3中，我们使用函数campaignEcommOrderAdd实现了这一点。我在v3.0:/ecommerce/stores/{store_id}/orders（网站链接）中找到了这个功能。

但我无法让它发挥作用。当我在Mailchimp上发帖时，我得到了一个404错误，但我不知道我做错了什么。下面是我的代码。

$apiKey = "xxx"; //xxx for privacy reasons
$json = json_encode(array(
    'id'            => $mailchimp_order['id'],
    'customer'      => array(
        'id'    => $mailchimp_order['email_id'],
    ),
    'campaign_id'   => $mailchimp_order['campaign_id'],
    'currency_code' => "EUR",
    'order_total'   => $mailchimp_order['total'],
    'tax_total'     => $mailchimp_order['tax'],
    'lines'         => $mailchimp_order['items'],
));
$dataCenter = substr($apiKey,strpos($apiKey,'-')+1);
$url = 'https://'.$dataCenter.'.api.mailchimp.com/3.0/ecommerce/stores/'.$mailchimp_order['store_id'].'/orders';
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_USERPWD, 'user:' . $apiKey);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json'));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_TIMEOUT, 10);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $json);
$result = curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);

这是我的$json变量的输出

{
    "id":"10000003",
    "customer":{
        "id":"a90f52f710"
    },
    "campaign_id":"641657",
    "currency_code":"EUR",
    "order_total":"56.90",
    "tax_total":"47.02",
    "lines":[
        {
            "id":"224",
            "product_id":"4427",
            "product_title":"Product name",
            "product_variant_id":0,
            "quantity":"1",
            "price":"49.95"
        }
    ]
}

这就是我得到的错误：

object(stdClass) {
    type => 'http://developer.mailchimp.com/documentation/mailchimp/guides/error-glossary/'
    title => 'Resource Not Found'
    status => (int) 404
    detail => 'The requested resource could not be found.'
    instance => ''
}