Local Market

I have 24 corporations producing a variety of goods but there is NO local market trading going on. I set the supply quality to any.

Is there anything else I need to do to get my corps to buy from each other???

You need to set up a common market if you want them to trade with eachother automatically.

Or else simply go and set up direct contracts between corporations.

And dont use any quality for supplies. Try 170 or there abouts.