If the login credentials you've used are not recognised, you will get the following response:
<ResponseStatus>
<ReturnStatus>
<Success>false</Success>
<Exceptions>
<Exception>Not logged in successfully.</Exception>
<Exception>Could not find login credentials for TestLogin/TestPassword</Exception>
</Exceptions>
</ReturnStatus>
</ResponseStatus>
If you get this response, check the following and try again:
You are using the correct XML structure. The structure should match the example
Your login is spelled correctly
Your password is spelled correctly
If you still do not get a successful response or receive a different error, please contact your administrator.