I'm developing a SharePoint Application. I have SharePoint Foudation 2010. I created a External Content Type with Impersonated Custom Identity(Connection to SQL Server 2012). After I created a list(function Create Lists and Form). The problem is that: I can't view data from my list. I know that SharePoint required the service SSS(Secured Store Service) for this type of connection. Anyone can explain how I can resolve my problem? Sorry for my bad English.