Problems with Autodiscover request : 'GetUserSettings' - outlook

Question

The request to
POST autodiscover-s.outlook.com/autodiscover/autodiscover.xml
Content-Type: text/xml; charset=utf-8
Accept: text/xml; charset=utf-8
BODY
<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:a="http://schemas.microsoft.com/exchange/2010/Autodiscover"
xmlns:wsa="http://www.w3.org/2005/08/addressing"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
<soap:Header>
<a:RequestedServerVersion>Exchange2010</a:RequestedServerVersion>
<wsa:Action>http://schemas.microsoft.com/exchange/2010/Autodiscover/Autodiscover/GetUserSettings</wsa:Action>
<wsa:To>https://outlook.com/autodiscover/autodiscover.svc</wsa:To>
</soap:Header>
<soap:Body>
<a:GetUserSettingsRequestMessage xmlns:a="http://schemas.microsoft.com/exchange/2010/Autodiscover">
<a:Request>
<a:Users>
<a:User>
<a:Mailbox>test#test_test.onmicrosoft.com</a:Mailbox>
</a:User>
</a:Users>
<a:RequestedSettings>
<a:Setting>UserDisplayName</a:Setting>
<a:Setting>UserDN</a:Setting>
<a:Setting>UserDeploymentId</a:Setting>
<a:Setting>InternalMailboxServer</a:Setting>
<a:Setting>MailboxDN</a:Setting>
<a:Setting>ActiveDirectoryServer</a:Setting>
<a:Setting>CasVersion</a:Setting>
<a:Setting>EwsSupportedSchemas</a:Setting>
</a:RequestedSettings>
</a:Request>
</a:GetUserSettingsRequestMessage>
</soap:Body>
</soap:Envelope>
I got the response :
<?xml version="1.0" encoding="utf-8"?>
<Autodiscover xmlns="http://schemas.microsoft.com/exchange/autodiscover/responseschema/2006">
<Response>
<Error Time="16:03:30.0909591" Id="4042903973">
<ErrorCode>600</ErrorCode>
<Message>Invalid Request</Message>
<DebugData />
</Error>
</Response>
</Autodiscover>
I do not know what is wrong. I tried a lot of endpoints and different schemas in the body, but still nothing. Can anyone help me with solving such a problem?

Answer 1

Your submitting a SOAP request to the POX (Plain old XML endpoint) you need to submit the SOAP request to autodiscover-s.outlook.com/autodiscover/autodiscover.svc which is the SOAP endpoint.

Answer 2

I've test your code.
Did you valid your parameter for this?
<a:Users>
<a:User>
<a:Mailbox>test#test_test.onmicrosoft.com</a:Mailbox>
</a:User>
</a:Users>
<a:RequestedSettings>
<a:Setting>UserDisplayName</a:Setting>
<a:Setting>UserDN</a:Setting>
<a:Setting>UserDeploymentId</a:Setting>
<a:Setting>InternalMailboxServer</a:Setting>
<a:Setting>MailboxDN</a:Setting>
<a:Setting>ActiveDirectoryServer</a:Setting>
<a:Setting>CasVersion</a:Setting>
<a:Setting>EwsSupportedSchemas</a:Setting>
</a:RequestedSettings>
</a:Request>
If your request parameter correct, you can refer to this link:
Quick way to Fix AutoDiscover Error Code 600 in Exchange