Cannot update UDO

Hi,

I have created one UDT (Object type: Master Data) and register it through UDO.

My scenario is that whenever i enter some data in UDT. After click on add button it will store data.

But in real whenever i show in database, here that data will not stored as well as whenever i navigate previous record then it will automatically go in update mode.

Plz..  view below image for better understanding.

Thanks,

Nikunj