https://www.udemy.com/arbitrage-101-find-sell-products-using-amazon-fba/?couponCode=FreeArb

I get "Coupon not valid for this course" response.
UPDATE: FEW HOURS LATER...
OK, it worked for me this time. Thanks @mockie for reminding to try again.
[quote='ArnieAbrams' pid='1683863' dateline='1461736162']
I get "Coupon not valid for this course" response.
[/quote]
it's working.