French Mastery - Clever Commerce

I probably 'm real dumb but i have to make sure before submitting this as a bug… at the 5th French Mastery, the one called Clever Commerce in the instruction it say’s to Accrue 2000 Food, Wood or Stone from Traders in the Feudal Age (II). I have bought more then 2000 wood then in another game more then 2000 stone it didn’t work. Does anybody know how what should I do? I’m so lost.

think u gotta build that land mark that be stashing ressources(french) dont take them from the building use ur trader to bring the ressource to a trader outpost i guess im trying rn
if u looking for a newb partna Woosah Qc

You can click on french traders and select the resources that they are trading (Gold is default).