Always price after fees. Gross sell price is not profit.
Respect VeRO / brand restrictions. Listing blocked brands can get your account limited.
Ship on time and upload real tracking. Metrics matter more than one extra sale.
Do not blast thousands of listings in one hour. eBay account health prefers a steady daily schedule. Dropenza schedule listing exists for that.
Keep Amazon cost + fees under your eBay price with a floor. Safe Price and reprice settings exist so you don’t forget under pressure.