Supplier workflow for parked invoices

Hi,

We're trying to setup a workflow for "parked" invoices but have a hard time to figure it out.
Todays setup does a validation of all incoming supplier invoices, if the invoice fails the internal validation it will be set as "parked". The user will then need to add the information that is needed in order to validate the invoice.

Are there any way to setup a workflow for these specific invoices (parked)?

Please see attached image for more information

//Olof