Is it possible to change PO price after GR

Hi friends,

I have a question about the PO for which goods receipt is created and the invoice price from the vendor is different. I want to change PO Price because the invoice price is different and should be the same for the good receipt and the invoice after its changed. Is it possible? iam able to change the PO price but will the GR document gets updated?

any inputs are appreciated

thank you

genie