An agency charges you for their time. A retail partner buys your inventory and profits from your success. That single difference changes every decision they make.
When you hire an Amazon agency, you're buying their time. When you partner with a retail operator like Lanstar, you're getting a business partner who profits only when you do.
This isn't a subtle distinction. It changes everything: how SKUs are prioritized, which listings get investment, how aggressively the Buy Box is defended, and what happens when something goes wrong at 9pm on a Sunday.
The agency incentive problem
Agencies bill hours. That's not a moral failing — it's a business model. But it creates a structural conflict.
If your ad spend doubles, the agency's percentage-of-spend fee doubles. If your sales fall, the retainer continues. If a competitor launches and steals share, the agency writes a strategy deck. If your warehouse runs out of poly bags, that's "outside the scope of work."
The agency wins when you keep paying. The agency does not lose when you don't ship.
The retail partner incentive
When Lanstar buys your inventory at wholesale, our economics flip. We've taken the inventory risk onto our balance sheet. If your SKUs don't sell, we eat the loss. If pricing collapses, we eat the margin compression. If a competitor takes share, our purchase orders shrink.
So our incentives align with yours by force:
- We over-invest in the listings that move units
- We chase the Buy Box because every lost Buy Box is our lost margin
- We pull underperforming SKUs from our orders so the catalog stays healthy
- We escalate fulfillment problems because they hit our P&L the same day they hit yours
Where the difference shows up in practice
Stockouts
Agency response: a recommendation memo, scheduled meeting, follow-up email next week. Retail partner response: emergency reorder pushed the same afternoon, PPC throttled within the hour, listing optimized for back-in-stock recovery before the SKU even sells out.
Unauthorized sellers
Agency response: "We can file violation reports for $X per filing." Retail partner response: monitored 24/7, filed automatically with evidence, supply leak traced upstream — because every unauthorized seller is competing with our inventory.
Listing optimization
Agency response: A/B test proposals, conversion analytics decks, recommendations for the brand to implement. Retail partner response: image updates, copy rewrites, and A+ refreshes shipped by our team, because every conversion point we miss is our missed sale.
PPC
Agency response: percentage of ad spend, optimized for spending more, not necessarily more efficiently. Retail partner response: ACoS managed against our margin reality. If a campaign loses money, we kill it the same week.
When an agency is the right call
To be fair: there are situations where an agency makes sense. If you have an in-house Amazon team and just need extra capacity for PPC or creative, an agency partner can extend your bandwidth. If you're a very large brand with the internal expertise to direct external resources, the agency model works.
The retail-partner model wins when:
- You don't have a deep in-house e-commerce team
- You want predictable cash flow instead of variable agency invoices
- You'd rather sell to a single sophisticated buyer than manage a dozen vendors
- You want a partner whose business depends on yours
The honest summary
Read the contract. If your partner gets paid whether you sell or not, you have an agency. If your partner only makes money when your inventory clears, you have a retail partner.
Both can be useful. But they are not the same thing — and brands that confuse them tend to be disappointed by both.
