1. Review the development documentation for the preview interface [available for both subscription and service accounts after verification]. See Figure 1.
![Review the development documentation for the preview interface [available for both subscription and service accounts after verification]](https://media.shuijingwanwq.com/2021/06/1-2.png)
2. After the actual call, the response returned an error: errcode: 40132, errmsg: invalid username rid: 60dac95d-5c42d192-50f09436.
Plaintext
Array
(
[code] => 200
[status] => OK
[responseline] => HTTP/1.0 200 OK
[headers] => Array
(
[Connection] => close
[Content-Type] => application/json; encoding=utf-8
[Date] => Tue, 29 Jun 2021 07:18:54 GMT
[Content-Length] => 77
)
[content] => {"errcode":40132,"errmsg":"invalid username rid: 60dac95d-5c42d192-50f09436"}
[meta] => HTTP/1.0 200 OK
Connection: close
Content-Type: application/json; encoding=utf-8
Date: Tue, 29 Jun 2021 07:18:54 GMT
Content-Length: 77
{"errcode":40132,"errmsg":"invalid username rid: 60dac95d-5c42d192-50f09436"}
)
3. Check the return code description, which indicates the cause: invalid WeChat ID. See Figure 2.

4. Check the request parameters: touser=13980000000, which is a mobile phone number. See Figure 3.

5. Modify the request parameter to touser=shuijingsewwwwqnwq66tt, which is a WeChat ID. The response is successful. See Figure 4.

Plaintext
Array
(
[code] => 200
[status] => OK
[responseline] => HTTP/1.0 200 OK
[headers] => Array
(
[Connection] => close
[Content-Type] => application/json; encoding=utf-8
[Date] => Tue, 29 Jun 2021 07:31:01 GMT
[Content-Length] => 40
)
[content] => {"errcode":0,"errmsg":"preview success"}
[meta] => HTTP/1.0 200 OK
Connection: close
Content-Type: application/json; encoding=utf-8
Date: Tue, 29 Jun 2021 07:31:01 GMT
Content-Length: 40
{"errcode":0,"errmsg":"preview success"}
)
