Using BCS Meta Man, we build a SharePoint Business Connectivity Services (BCS) External Content Type. Initially we look at the supported data types such as Microsoft SQL, Oracle, ODBC, OData, Salesforce.com, Dynamics CRM, and WCF. We then discuss the different types of methods such as Finder, Specific Finder, Creator, Updater, and Deleter. We then build an association using BCS Meta Man between two entities simply by dragging and dropping the connection. Using BCS Meta Man, we generate a custom action allowing users to easily search for customers using a single click from within an External List. Finally, we deploy and demonstrate the external content type in use within a SharePoint Team Site.