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<?xml-stylesheet type="text/xsl" href="https://community.appian.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/"><channel><title>How to exit the rule immediately if a rule input is null?</title><link>https://community.appian.com/discussions/f/best-practices/19320/how-to-exit-the-rule-immediately-if-a-rule-input-is-null</link><description>How to exit the rule immediately if a rule input is null?</description><dc:language>en-US</dc:language><generator>Telligent Community 12</generator><item><title>RE: How to exit the rule immediately if a rule input is null?</title><link>https://community.appian.com/thread/75585?ContentTypeID=1</link><pubDate>Mon, 27 Jul 2020 06:08:48 GMT</pubDate><guid isPermaLink="false">d3a83456-d57b-489c-a84c-4e8267bb592a:cad9e614-baed-41c5-87e2-76c503731c1b</guid><dc:creator>Dharmendra Godhani</dc:creator><description>&lt;p&gt;Hi cindy,&lt;/p&gt;
&lt;p&gt;you can make use of isnull() function to check whether the rulw input is null or not. If it is null then simply return null or {} or &amp;quot;&amp;quot; to get out from the rule.&lt;/p&gt;
&lt;p&gt;I hope this might help you&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: How to exit the rule immediately if a rule input is null?</title><link>https://community.appian.com/thread/75584?ContentTypeID=1</link><pubDate>Mon, 27 Jul 2020 06:08:48 GMT</pubDate><guid isPermaLink="false">d3a83456-d57b-489c-a84c-4e8267bb592a:be3eed2f-a478-476d-aff3-2c58746aa329</guid><dc:creator>Timo</dc:creator><description>&lt;p&gt;start with&lt;br /&gt;if(isnull(ri!input),&lt;/p&gt;
&lt;p&gt;null,&lt;/p&gt;
&lt;p&gt;rest of the rule&lt;br /&gt;)&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>