This endpoint only for PH and BR local seller — API Shopee

import requests

KEY = "q360_live_..."  # khóa API của brand
r = requests.get(
    "https://partner.quantri360.com/v1/shopee/api/v2/order/download_invoice_doc",
    params={
        "order_sn": "2611040DEMO001"
    },
    headers={"Authorization": f"Bearer {KEY}"},
    timeout=60,
)
print(r.status_code)
print(r.json())

const KEY = 'q360_live_...'; // khóa API của brand
const url = new URL('https://partner.quantri360.com/v1/shopee/api/v2/order/download_invoice_doc');
for (const [k, v] of Object.entries({"order_sn":"2611040DEMO001"})) url.searchParams.set(k, typeof v === 'object' ? JSON.stringify(v) : String(v));
const r = await fetch(url, {
  method: 'GET',
  headers: { Authorization: `Bearer ${KEY}` },
});
console.log(r.status, await r.json());

<?php
$key = 'q360_live_...'; // khóa API của brand
$url = 'https://partner.quantri360.com/v1/shopee/api/v2/order/download_invoice_doc' . '?' . http_build_query(['order_sn' => '2611040DEMO001']);
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ['Authorization: Bearer ' . $key]);
$res = curl_exec($ch);
$status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
echo $status, "\n", $res;