-- Callback onSell() function. If you wish, you can change certain Npc to use your onSell().
function ShopModule:callbackOnSell(cid, itemid, subType, amount, ignoreCap, inBackpacks)
local shopItem = nil
for _, item in ipairs(self.npcHandler.shopItems) do
if(item.id == itemid[COLOR="Red"][B] and item.subType == subType[/B][/COLOR]) then
shopItem = item
break
end
end