title: Authentication Error while connecting to Fedex api
body: <p>I am integrating Fedex API with codeigniter . I downloaded test code and  WSDL files from fed ex website.While integrating, I am getting below error:</p>
  
  <pre><code>  PHP_Common initialized
  
      stdClass Object
     (
  [HighestSeverity] =&gt; ERROR
  [Notifications] =&gt; Array
      (
          [0] =&gt; stdClass Object
              (
                  [Severity] =&gt; ERROR
                  [Source] =&gt; prof
                  [Code] =&gt; 1000
                  [Message] =&gt; Authentication Failed
              )
  
      )
  
  [Version] =&gt; stdClass Object
      (
          [ServiceId] =&gt; ship
          [Major] =&gt; 23
          [Intermediate] =&gt; 0
          [Minor] =&gt; 0
      )
  
    )
  
  
  
  The transaction returned an Error.
  Severity: ERROR
  Source: prof
  Code: 1000
  Message: Authentication Failed
  </code></pre>
  
  <p>I am getting this repsonse:</p>
  
  <pre><code> &lt;SOAP-ENV:Envelopexmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"&gt;&lt;SOAP-ENV:Header/&gt;&lt;SOAP-ENV:Body&gt;&lt;v23:ProcessShipmentReplyxmlns:v23="http://fedex.com/ws/ship/v23"&gt;&lt;v23:HighestSeverityxmlns:v23="http://fedex.com/ws/ship/v23"&gt;ERROR&lt;/v23:HighestSeverity&gt;&lt;v23:Notificationsxmlns:v23="http://fedex.com/ws/ship/v23"&gt;&lt;v23:Severityxmlns:v23="http://fedex.com/ws/ship/v23"&gt;ERROR&lt;/v23:Severity&gt;&lt;v23:Sourcexmlns:v23="http://fedex.com/ws/ship/v23"&gt;prof&lt;/v23:Source&gt;&lt;v23:Codexmlns:v23="http://fedex.com/ws/ship/v23"&gt;1000&lt;/v23:Code&gt;&lt;v23:Messagexmlns:v23="http://fedex.com/ws/ship/v23"&gt;AuthenticationFailed&lt;/v23:Message&gt;&lt;/v23:Notifications&gt;&lt;v23:Versionxmlns:v23="http://fedex.com/ws/ship/v23"&gt;&lt;v23:ServiceIdxmlns:v23="http://fedex.com/ws/ship/v23"&gt;ship&lt;/v23:ServiceId&gt;&lt;v23:Majorxmlns:v23="http://fedex.com/ws/ship/v23"&gt;23&lt;/v23:Major&gt;&lt;v23:Intermediatexmlns:v23="http://fedex.com/ws/ship/v23"&gt;0&lt;/v23:Intermediate&gt;&lt;v23:Minorxmlns:v23="http://fedex.com/ws/ship/v23"&gt;0&lt;/v23:Minor&gt;&lt;/v23:Version&gt;&lt;/v23:ProcessShipmentReply&gt;&lt;/SOAP-ENV:Body&gt;&lt;/SOAP-ENV:Envelope&gt;
  </code></pre>