Before you can use access data via webconnect, it must be enabled in Venice.
Go to the parameters of the Venice module 'ODBC file descriptions'. Choose the years and the tables that must be availabel via ODBC and OData. Check 'Enable access for mobile applications' to make the dossier accessible via WebConnect.
Enter the name of the named database in the Venic module 'ODBC file descriptions'. The name is used for getting or modifying data via ODBC and as the dossier id that you include in your web service call to get or modify data from the dossier. After that create the ODBC file descriptions.