If your are using an HANA test server you may be in a situation where business tables are placed inside the system schema of the system user. By default, Automated Analytics 2.5 (Data Manager and Modeler) do not expose the system schema. To see the system schema you must add to your configuration file the following line:
ODBCStoreSQLMapper.*.AcceptTable.1=.
Depending on the environment, Desktop or Client-server, modify the file:
KJWizard.cfg under ...\SAP Predictive Analytics\Desktop 2.5\Automated\EXE\Clients\KJWizardJNI
KxCORBA.cfg under ...\SAP Predictive Analytics\Server 2.5\EXE\Servers\CORBA