Special stock indicator in Production Order Component overview

Hi Team,

I have one finished product , for which i have created BOM . It has only one component in it .

Now i am creating a Sales order , based on the definition and requirement set , system is creating a production order in background.

When i go to production order and see components overview screen , there is one field special stock . This is getting filled with '1' - Individual customer stock always.

Even though we have stock in storage location , it is expecting components to be in Sales order stock .

If i create a stand alone production order for same materials , there is no special stock indicator set in components .

Can any body let me know how is this special stock field getting populated and what settings has to be reviewed in order to supress the same.

Thanks,

sudhakar