微信服务商人脸支付接口返回错误信息特约子商户商户号未授权服务商的产品权限？ - WXOPEN Club

调用微信服务商人脸支付接口返回错误信息

(
    [request_url] => https://api.mch.weixin.qq.com/pay/facepay
[request_body] => s:596:"<xml><sub_mch_id>xxxxxxxx</sub_mch_id><device_info><![CDATA[1231312312312hiqwe]]></device_info><body><![CDATA[image形象店-深圳腾大- QQ公仔]]></body><out_trade_no><![CDATA[20191203-wenuewerhji23r8j8we3hwe]]></out_trade_no><total_fee>888</total_fee><spbill_create_ip><![CDATA[222.223.206.204]]></spbill_create_ip><openid><![CDATA[weqweqeeddf]]></openid><face_code><![CDATA[qwejiwjiedu]]></face_code><appid><![CDATA[xxxxxxxxxx]]></appid><mch_id>xxxxxxxxxx</mch_id><nonce_str><![CDATA[micro5df1fbd104679]]></nonce_str><sign><![CDATA[7C14CB9691374AACF632B7DDE95CD5E3]]></sign></xml>";
[request_header] => a:0:{}
    [response_http_code] => 200
    [response_body] => s:150:"<xml><return_code><![CDATA[FAIL]]></return_code>
<return_msg><![CDATA[特约子商户商户号未授权服务商的产品权限]]></return_msg>
</xml>";
    [response_header] => s:165:"HTTP/1.1 200 OK
Server: nginx
Date: Thu, 12 Dec 2019 08:35:29 GMT
Content-Type: text/plain
Content-Length: 150
Connection: keep-alive
Keep-Alive: timeout=8

";
)

特约子商户商户号未授权服务商的产品权限？

这个怎么解决