Error 127 - Invalid application name

Why am I getting the following error?
 

  <Errors>

    <ShortMessage>Application name is invalid.</ShortMessage>

    <LongMessage>API application "myapplication" invalid</LongMessage>

    <ErrorCode>127</ErrorCode>

    <SeverityCode>Error</SeverityCode>

    <ErrorParameters ParamID="0">

      <Value>myapplication</Value>

    </ErrorParameters>

    <ErrorClassification>RequestError</ErrorClassification>

  </Errors>

Summary

There are  couple of reasons why you can get an invalid application error:

• You have not specified the application name correctly.  This has to be exactly the same as AppID, which is part of your keys

• You are sending your request to the wrong server.  Remember, that the Sandbox and Production environments are completely separate and the credentials of one will not work in the other.

Double check your keys and the server url.  If you continue getting the error, please file a support request and we can assist you with the issue.

• Knowledge Base: 
  What Server URL should I use when I make an API call request

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