Changing data of a screen field

Hi All,

I have 10 custom fields on the FPM Create Material UI.

All of them are configured by the functional consultant.

I am populating the Initial Screen plant to one of those fields on the Next screen (When user Enters Material, Plant and Change Request) He hits continue button. I am defaulting the Initial screen plant to the next screen Z field.

Now when user hits save button. The Zfield(plant) is not getting updated to the DB table.

When he enters data to some other field along with this Z field then it is getting updated to the DB Table.

I wrote my logic for defaulting in the Feeder class method GET_DATA.

Please assist.