How can we interface updates to Purchase Orders and keep PO in 'Approved' status?

Hi All -

We interface expense PO's from a 3rd party system into Oracle EBS. When we interface (i.e. create) new PO's , we can interface the PO's into EBS in Approved status. When an existing PO is updated and interfaced into EBS, we want to also interface the updated PO in Approved Status. Is this possible?

Thanks