https://www.infopathdev.com:443/forums/40.aspxFor browser form specific questionsenCommunityServer 2007 SP3 (Build: 31118.962)https://www.infopathdev.com:443/forums/thread/31706.aspxTue, 26 Aug 2008 14:17:49 GMT033a2e2d-04e2-4a9d-be01-a4634161eefd:31706mako02010https://www.infopathdev.com:443/forums/thread/31706.aspxhttps://www.infopathdev.com:443/forums/commentrss.aspx?SectionID=40&PostID=31706<p>I have an Infopath web-based form based on a Web&nbsp;Service.<br />The web method I&#39;m using as the main data source for the form gives me a&nbsp;complex type (it has collections of complex types). Infopath draws it nicely (with sections and repeating sections inside&nbsp;for the collections) and passes the type to the submit method too.<br />Now I&#39;ve added secondary data sources to uses as lookups.<br />When I connect these data sources to the fields of the simple group at the top level&nbsp;(which represents the actual type) it works. BUT when I connect a lookup data source to a filed inside a repeating group&nbsp;at one of the deeper levels (which represent a collection of a related type) Design Checker throws&nbsp;the SOAP exception: <em>Server was unable to process request. ---&gt; Object reference not set to an instance of an object.</em> I spent hours searching the Net for an answer but still can&#39;t figure it out. I need help!<br />Thank you.</p>