issue

Hi all. I am having a hard time getting a solution to my particular dilema. Any opinions would be greatly appreciated.

I have a requirement to add a new input field to a custom infotype. This field should be invisible to the users, but I need a method of populating this field using a call transaction through a batch process.

I have tried making the screen field invisible and setting modification group 1 to '006'. This did not work as the screen field becomes visible with a bunch of asteriks (******).

I know one option might be to set the modification group 1 as well as the invisible flag dynamically in the BPO checking SY-BINPT.

Has anyone tried this or is there an alternative other than looping at screen in BPO?