Invoice Ticket template - this will place the ticket on your invoice, and include the custom fields

invoice_ticket_template.html

<table width="750" border="0" align="center" cellpadding="0" cellspacing="0" class="main-table">
    <tr>
        <td width="18" height="20">&nbsp;</td>
        <td width="714" valign="top">&nbsp;</td>
        <td width="18">&nbsp;</td>
    </tr>


    <tr>
        <td>&nbsp;</td>
        <td valign="top">
            <table width="100%" border="0" cellspacing="0" cellpadding="0">
                <tr>
                    <td width="100%" align="right" valign="middle">
                        <table width="100%" border="0" cellspacing="0" cellpadding="0">
                            <tr>
                                <td align="right">
                                    <table width="50%" border="0" cellspacing="0" cellpadding="0" class="rig-table">
                                        <tr>
                                            <td width="60" align="center" class="heading">Ticket Date</td>
                                            <td width="156" align="center" class="text">&nbsp;{{ticket_date}}</td>
                                        </tr>
                                        <tr>
                                            <td align="center" class="heading">Ticket#</td>
                                            <td align="center" class="text">&nbsp;{{ticket_number}}</td>
                                        </tr>
                                        <tr>
                                            <td align="center" class="heading">Subject</td>
                                            <td align="center" class="text">&nbsp;{{ticket_subject}}</td>
                                        </tr>
                                    </table>
                                </td>
                            </tr>
                        </table>
                    </td>
                </tr>
            </table>
        </td>
        <td>&nbsp;</td>
    </tr>

    <tr>
        <td colspan="2">&nbsp;</td>
    </tr>
<style>
 .comments-table{ margin:0px; border:#E9E8E8 solid 1px;}
        .comments-table .heading{  background-color:#DAD9D9; font-size:15px; font-weight:bold; color:#696969 ; border-right:#E9E8E8 solid 1px;}
        .comments-table .text{  font-size:13px; padding:5px 5px 3px 10px; line-height:20px; border-right:#E9E8E8 solid 1px;}
        .comments-table .text2{  font-size:13px; padding:5px 5px 3px 10px; line-height:20px; background-color: #f4f4f4; border-right:#E9E8E8 solid 1px;}
</style>
    <tr>
        <td colspan="2">{{ticket_custom_fields}}</td>
    </tr>
        <tr>
        <td colspan="2">&nbsp;</td>
    </tr>
    <tr>
        <td>&nbsp;</td>
        <td valign="top"><table width="100%" border="0" cellspacing="0" cellpadding="0" class="midd-table">
            <thead>
            <tr>
                <th class='heading' width='175px;'>Date</th>
                <th class='heading'>Comment</th>
            </tr>
            </thead>
            <tbody>
            {{ticket_problem}}
            </tbody>
        </table>
        </td>
        <td>&nbsp;</td>
    </tr>
</table>