Mass updating status of PO

All,

We have very specific business requirment to close 1000 of PO's with various set of condition such as open PO's where the project is closed or where the PO has been fully invoiced but not receipted. Any suggestion for carrying out such Mass update.

Checked Mass PO update feature. It doesnt help us with the condition we want to use. Any valid suggestio will be considered.

PS: Logged an SR but was only suggested to use Mass PO update feature . This is not usedful to our current requirement.

Thanks,

Vids