Purchase order / vendor invoice

Hello,

does someone know whether there is a way to set a "vendor invoice lock" in a purchase order?

I'm looking for a way as when u set a delivery block in a customer order that the goods will not be delivered!

My case is that I order free of charge at the vendor because of warranty. The vendor sends an invoice which is not f.o.c.

Now I want to be sure that my accountant will not post the vendor invoice via MIRO without asking me 😉

Can u help me?

Thanks in advance.