The latest release of the Sitecore to Salesforce (S4S) connector is largely around exception handling and improving the T4 template generation process (creating strong typed classes from objects).

To  minimize errors, developers using S4S are urged to download the freeSFDC-Explorer application that will let them access in the same way S4S does. It also provides great visibility into Salesforce, particular when either custom objects have been created or custom fields have been added to standard Salesforce objects.