The invoice can be created when the stock is under the "quality inspection "

Dear, all

    I work in the MM-SUS scenario.This issue is about the invoice creating .

    The supplier create the invoice in the SUS system according the GR list. But the status of GR is under the "quality inspection ". I think the vendor can't  create the invoice now. Why the system didn't check the GR status ?

     If so , how can I do the enhancement to check the status. As the stock status doesn't changed in the material document after quality checking (QA11)

    BR!

   Alex Yang