Display/Process Initial values

Hi,

I have the following delemma: with data binding, BSP input fields that are blank on the screen will ultimately be assigned internally ABAP initial values. For instance, take fields of type time. The conversion from internal format to string gives 00:00:00 for initial values. BUT, 00:00:00 means also midnight. And in the same way, a blank value in a time field is interpreted as initial (00:00:00). So, if an application is trying to retrieve some objects and is indifferent to the time, it will not be possible to know whether the user didn't enter anything or whether he enterred midnight.

The same problem exists for some other data types...

Any idea how to solve this?

Cheers,

Armand