Empty IDOC Generated

Hi Guru's

Thank you so much for your help so far in learning and configuring IDOC's,

I am now stuck in WE19 where i am able to create new IDOC in Test system, But however my segment details are completely empty

E1PLOGI

E1PITYP

E1P0000

Where i dont see any details under E1P0000, data's are not there.. how to fill the data's here , is that to be filled Manually.. ?

How to do it automatic?

Thanks

Sriram