https://www.infopathdev.com:443/forums/39.aspxNew to InfoPath? Search to see if your question has already been answered. If it has not, then ask it here or the appropriate topic forum.enCommunityServer 2007 SP3 (Build: 31118.962)https://www.infopathdev.com:443/forums/thread/19648.aspxMon, 07 May 2007 22:28:17 GMT033a2e2d-04e2-4a9d-be01-a4634161eefd:19648Matt Faus0https://www.infopathdev.com:443/forums/thread/19648.aspxhttps://www.infopathdev.com:443/forums/commentrss.aspx?SectionID=39&PostID=19648Hey oldradio99, <br /><br /> You can do this with custom data validation. In the Data Source task pane, double-click on the field that you want to conditionally set as required, and then then go the the Data Validation tab. You can construct the condition there using IS NOT BLANK. <br /><br /> Hope this helps!https://www.infopathdev.com:443/forums/thread/19643.aspxMon, 07 May 2007 21:38:59 GMT033a2e2d-04e2-4a9d-be01-a4634161eefd:19643oldradio990https://www.infopathdev.com:443/forums/thread/19643.aspxhttps://www.infopathdev.com:443/forums/commentrss.aspx?SectionID=39&PostID=19643<p>I am having a brain gas bubble (being politically correct).</p><p>Using IP 2003</p><p>I have a field that I want to say is not required if another field is not <br />blank.&nbsp; In other words, make field 2 required if field 1 is blank. And <br />conversely, if field 1 is not blank, fields 2 is not required.</p><p>Rule?&nbsp; Validation? </p><p>&nbsp;</p>