Review duplicate Prime parts
Prime parts from relics can be a practical place to start, provided the exact part is tradeable. Check whether it completes a set you want before selling it.
Compare the individual part's listings with the value of a complete set. Do not assume that assembling a set always produces a better sale.
Check mods individually
A mod's rarity alone does not tell you how quickly it will sell. Look for current buyers and compare the same mod rank.
Keep copies you use in your own builds. If ranking a mod costs resources you cannot comfortably replace, compare that cost with the additional asking price first.
Keep the first sale simple
Choose one item with a clear price comparison and list a quantity you actually own. An available buyer can be more useful than a high asking price with no matching orders.
Avoid buying expensive items for resale until you understand rank, supply, and the time it takes to find a buyer. Your first objective is to learn the process, not maximize the size of a trade.
Frequently asked questions
Should I sell every duplicate?
No. Check crafting requirements, your own builds, and set completion before listing an item.