Form personalization for performing actions on purchase orders

 Hi,

I need to prevent users from 'FINALLY CLOSING' purchase orders. This I believe can be done using forms personalization. I have tried a couple of methods but seem to be failing in this regard.

When you open the find purchase order form and access the header form you can go to Tools > Control and perform certain actions i.e. On Hold, Close, Finally Close, etc. It is in this PO_DOCON_CONROL.ACTION where I need to remove this from the available list of allowable actions.

Anybody out there have any ideas? I would be most greatful if you could share them with me.