Siebel Enterprise Integration Manager Administration Guide > Siebel EIM Tables > EIM Table and Column Mappings >
Database Extensibility and EIM
If you have licensed Database Extensibility and created extensions, you can use the Column Mapping view to specify mappings to your new fields. Database Extensibility and EIM support mappings between columns in extension tables and EIM tables only if these columns share the same base table. To map EIM table extensions to base table extensions, you must specify which column the extended field will point to in the base table. For more information on Database Extensibility, see Configuring Siebel Business Applications.