This very innovative feature enables you to set runtime variables that are available to your integration code. They are key|value pairs that are comma delimited. These variables make up the $returned array that is available to your integration code.&lt;br /&gt;&lt;br /&gt;&lt;b&gt;Please note:&lt;/b&gt;&lt;br /&gt;The keys &lt;i&gt;message&lt;/i&gt; and &lt;i&gt;status&lt;/i&gt; are reserved and cannot be used.&lt;br /&gt;&lt;br /&gt;Examples:&lt;br /&gt;status|something &lt;-- invalid&lt;br /&gt;message|something &lt;-- invalid