DocuSign SOAP API: Guid should contain 32 digits with 4 dashes (xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx)
<p>I sent a DocuSign SOAP API request. DocuSign responded with status 500 and faultstring of </p>

<blockquote>
  <p>1234: Guid should contain 32 digits with 4 dashes (xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx).</p>
</blockquote>

<p>I searched for the error code 1234 in the docs and online but couldn't find it.</p>

<p>The headers and XML I sent:</p>

<pre><code>Content-Type: text/xml; charset=UTF-8
SOAPAction: "http://www.docusign.net/API/3.0/CreateAndSendEnvelope"
X-DocuSign-Authentication: &lt;DocuSignCredentials&gt;&lt;Username&gt;email@example.com&lt;/Username&gt;&lt;Password&gt;[omitted]&lt;/Password&gt;&lt;IntegratorKey&gt;[omitted]&lt;/IntegratorKey&gt;&lt;/DocuSignCredentials&gt;

&lt;?xml version="1.0" encoding="UTF-8"?&gt;
&lt;env:Envelope xmlns:env="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"&gt;
&lt;env:Header/&gt;
&lt;env:Body&gt;
    &lt;CreateAndSendEnvelope xmlns="http://www.docusign.net/API/3.0"&gt;
    &lt;Envelope&gt;
        &lt;AccountId&gt;1234&lt;/AccountId&gt;
        &lt;Documents&gt;
            &lt;Document&gt;
                &lt;ID&gt;1&lt;/ID&gt;
                &lt;Name&gt;NDA Document&lt;/Name&gt;
                &lt;PDFBytes&gt;[omitted]&lt;/PDFBytes&gt;
                &lt;FileExtension&gt;html&lt;/FileExtension&gt;
            &lt;/Document&gt;
        &lt;/Documents&gt;
        &lt;Recipients&gt;
            &lt;Recipient&gt;
                &lt;ID&gt;1&lt;/ID&gt;
                &lt;UserName&gt;Larry Example&lt;/UserName&gt;
                &lt;Email&gt;larry@example.com&lt;/Email&gt;
                &lt;Type&gt;Signer&lt;/Type&gt;
                &lt;AccessCode xsi:nil="true"/&gt;
                &lt;RoutingOrder&gt;1&lt;/RoutingOrder&gt;
            &lt;/Recipient&gt;
        &lt;/Recipients&gt;
        &lt;Subject&gt;Please sign the NDA package&lt;/Subject&gt;
    &lt;/Envelope&gt;
&lt;/CreateAndSendEnvelope&gt;
&lt;/env:Body&gt;
&lt;/env:Envelope&gt;
</code></pre>