Surely this has been suggested before (dozens of times?) but at first glance I don't see it.

It's kind of annoying that when placing goods for sale on the market that if you fat finger the quantity of one of the things you want to sell that the order, minus the goods that you made the typing mistake on, still get placed for sale and a second turn selling goods is then required to place the goods that you goofed on for sale. Since a typing mistake was clearly made, why not just give an error message and have the order (in its entirety) fail to be placed for sale until all parts of it are within the required parameters?

or maybe have a 2-3 minute delay so that if you notice a mistake you can recall your goods without losing turns. since it takes hours (for most servers) for goods to get to the market I dont think a couple of minutes would bother anyone.

I like both ideas. The first solution is much easier