When a driver is created, it is stopped by default. To make the driver work, you must start the driver and cause events to occur. Identity Manager is an event-driven system, so after the driver is started, it won’t do anything until an event occurs.
To start the driver:
In Designer, open your project.
In the Modeler, right-click the driver icon
or the driver line, then select Live > Start Driver.
The driver cannot initialize completely unless it successfully connects to the Remote Loader and loads the SAP HANA driver shim.