how do I sell crafting materials

[silent tree]

You open your inventory, press the crystal icon on top to open your materials inventory, move whatever you wanna sell to your normal inventory then sell it on the gtn or whatever

[chrome marten]

check gtn category, single item pricing before you post items, singles or in bulk. one single will auto total stacks after the 1st one is posted. typically undercut or place yours a bit above low prices to maximise your profit potential, etc.