Hello it’s possible to link manually one PO with one vendor bill ???

@Marc Do you mean a PO with an existing standalone vendor bill? Then no, youll need to delete the bill and create it from the PO.

yes that's what i thought But with script I think it’s possible

We tried it before via script and we were told that it's also not possible. The PO must be "transformed" to a vendor bill. Can't be done after the fact. Please keep us updated if it's fine. I hope we are wrong.