Scanning in product for a po?

I looked at several pos systems before RMS each one of those systems had it to were you could recieve inventory from a comma delimted file, most used the scanner that you use for your physical inventory. This would help if you got the same products from the same vendor each time all you would have to do is scann type in the qty then receive. You would then look at the cost to se if everything matched if it did you hit receive if not you change the prices that went up then when it matched you recieve in to inventory. Does anyone have this type of add on to RMS already? (Im my opinon this should have come on RMS to begin with....it did with the others i saw)