What is the Expert mode?
The expert mode is a checkbox which is displayed on the launch popup screen of the BI sessions. When the expert mode is on, the message 00344 “No batch input data for screen & &” is emitted when you run in A or E display mode. Note: in other modes (N/P), this message is always emitted. You can also switch it during the execution via menu under System -> Services -> Batch Input.