http://msmvps.com/blogs/theproblemsolver/archive/2008/10/16/using-collections-of-custom-objects-in-a-workflow.aspxLast week during my Chalk & Talk session at the SDC one of the attendees was having problems with workflow persistence and collections of custom objects. Now I never got to see his code so I am not sure what the problem was but maybe this simple sampleenCommunityServer 2008.5 SP2 (Build: 40407.4157)