Gst input credit

Dear all

is it mandate to match invoice bill number and INVOICE AMOUNT of supplier while paying, because we received some short quantity i.e for 16000kg we received only 15900kg ,,so can we deduct the amt for the same , and is there any mismatch will happen when supplier files his gstr 1 and with our gstr 2 to claim input credit.

pls revert..

regards manoj