Account health
Review policy history, warnings, suppressed listings and the ownership/transfer process. Do not assume an account can simply be handed over.
SKU economics
Rebuild product-level margins after Amazon fees, ads, returns, storage, freight and landed cost.
Use Flippa itself to verify current listings, pricing and platform details.
Inventory
Age stock, identify stranded or slow-moving inventory and understand storage exposure. Clarify inventory treatment in the purchase price.
Supplier resilience
Check manufacturing concentration, lead times, quality control, MOQs and intellectual-property ownership.
Advertising dependence
Separate organic ranking from paid sales and inspect TACoS/ACoS trends with care. Strong revenue can still rely heavily on paid placement.
Platform concentration
Model what happens if a listing is suspended, fees rise or ranking weakens. Platform dependence belongs explicitly in the valuation discussion.