> For the complete documentation index, see [llms.txt](https://sourcesheets.gitbook.io/sourcesheets-new-seller-blueprint/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://sourcesheets.gitbook.io/sourcesheets-new-seller-blueprint/part-4-sourcing-and-buying-your-first-products/7.5.4-phase-4-competition-and-amazon-behaviour.md).

# Phase 4: Competition & Amazon Behaviour (Gates 5–6)

If a product survives the financial gates and shows stable demand, it can still fail quickly once competition dynamics come into play. This phase answers a difficult but critical question: even if this product sells, can you realistically compete on it?

Many beginner losses happen here, not because the product is bad, but because the seller underestimates how other sellers, and Amazon itself, behave.

**Why competition is a separate phase.** Competition doesn't affect whether a product sells, it affects who gets paid. A product with strong demand and stable pricing can still be unviable if too many sellers are fighting for the same Buy Box, Amazon controls pricing behaviour, or sellers are actively racing the price down. This phase forces you to assess pressure, not popularity.

## Gate 5: Amazon's Role in Pricing

Amazon isn't a neutral participant. When Amazon is on a listing, it often sets the effective price ceiling, matches competitors aggressively, and removes margin from third-party sellers. In some cases Amazon's presence is manageable, in others it kills profitability entirely.

As a working definition: check the price history over the last 90 days. If Amazon has held the Buy Box on more than roughly **30% of those days**, treat that as Amazon "frequently" controlling the listing, and fail the gate. This gate isn't about avoiding Amazon at all costs, an occasional appearance isn't a problem. It's about recognising when Amazon's presence is the default state of the listing rather than the exception.

## Gate 6: Offer Count Pressure & Seller Behaviour

Offer count matters less as a raw number and more as a signal, but it's still worth a working line: more than roughly **10 active offers**, combined with frequent price changes, rapid undercutting, and short-lived Buy Box wins, usually indicates aggressive competition and should fail the gate. Under that, with pricing that moves in small, infrequent steps, competition is usually manageable.

Seller churn is a key warning sign regardless of the exact count. When sellers appear and disappear quickly, it often means margins are too thin, sellers are testing and exiting, or the listing punishes slow reactions. This is where race-to-the-bottom behaviour shows itself. If a product only works when you reprice constantly, monitor the listing obsessively, and react faster than everyone else, it isn't suitable at this stage.

**Why competition kills otherwise "good" products.** Beginners often assume competition can be managed later. In reality, you can't out-reprice automation manually, you can't outlast sellers with deeper pockets, and you can't force stability into a hostile listing. This phase eliminates products that rely on execution perfection rather than structural viability.

## Outcome of Phase 4

The product either fails, if competitive pressure makes outcomes unreliable, or proceeds, if competition appears manageable under normal conditions. Passing doesn't mean competition is low, it means competition is predictable and survivable.