Every week the vendor updates how many finished, well made products he wants. I just started woodworking and at the first monday it changed from 0/0 to 0/11 etc. so atleast it should work in the newest build.
Edit: sold 5 spoons monday and when tuesday hit he wanted no more sculpures. unsure why he dident want more but still accepted furnitures.
(the first zero is how many you have sold yet not how many you have, and the second is how many the vendor wants)