Amazon continues to restructure its vendor program. Brands that sold through Vendor Central (1P) in 2019 are still getting squeezed: purchase orders drop, chargebacks increase, margin erodes. Some are being pushed out entirely. Others are leaving voluntarily to reclaim pricing control and margin.
If you're making the switch to Seller Central (3P), here's the operational playbook. This guide covers ASIN migration, FBA fee structures as of 2026, advertising platform differences, A+ Content portability, and how to choose a 3P partner if you're not managing the account yourself.
This is not a theoretical comparison. It's a checklist for brands that need to make the move without losing the Buy Box, tanking their rank, or blowing up their margin structure.
You sell wholesale to Amazon. Amazon places purchase orders, owns the inventory, sets the retail price, handles fulfillment, manages customer service, and runs advertising (if they choose to). You ship to Amazon warehouses and invoice them. The "Sold by Amazon.com" badge appears on your listings.
You have limited control. Amazon can reprice products below your MAP, reduce PO volume without notice, charge back for shortages or damages, and require co-op contributions. Margin is typically lower because you're selling at wholesale, not retail.
You list products on Seller Central and sell directly to end customers. You set the retail price. You manage advertising. You handle inventory (either through FBA or your own fulfillment). You own the relationship with Amazon as a seller, not a supplier.
You have more control over pricing, product content, and customer data. Margin is typically higher because you're selling at retail minus fees (referral fees, FBA fees, storage fees, advertising costs). But you also own all the operational work: content creation, advertising strategy, inventory forecasting, customer service.
| Dimension | Vendor Central (1P) | Seller Central (3P) |
|---|---|---|
| Inventory ownership | Amazon | You (or Amazon via FBA) |
| Retail pricing | Amazon sets price | You set price |
| Advertising | Amazon manages (inconsistent) | You manage campaigns |
| Margin structure | Wholesale minus chargebacks | Retail minus fees |
| Prime eligibility | Automatic | Requires FBA or SFP |
| A+ Content | Included | Requires Brand Registry |
| Listing control | Limited | Full control |
| Customer service | Amazon handles | You (or FBA handles) |
The 2019 vendor purge was not a one-time event. Amazon has continued to reduce vendor program scope. Brands doing $2M–$10M annually see POs drop 30–50% over 24 months. Amazon cherry-picks only the top 10–20 SKUs and ignores the rest of the catalog.
This creates planning chaos. You can't forecast inventory if you don't know whether Amazon will order 500 units or 50 next quarter. Long-tail SKUs sit in your warehouse while high-velocity items go out of stock because Amazon under-ordered.
Wholesale pricing to Amazon typically lands around 50–60% of retail. Then Amazon takes chargebacks for freight, packaging compliance, shortage claims, and co-op fees. After deductions, effective margin can drop to 15–25%.
Compare that to Seller Central, where you sell at retail and pay:
Net margin on 3P often lands at 25–35%, sometimes higher if you run lean advertising and have favorable fulfillment costs.
Amazon reprices your products however they want on Vendor Central. If that undercuts your MAP or damages your retail channel relationships, you have no recourse.
On Seller Central, you set the price. If Amazon attempts to list below your price via a different seller, you can enforce MAP through Brand Registry tools and authorized seller agreements.
Amazon has been signaling for years that it prefers the 3P model. Advertising features that were Vendor-exclusive in 2019 (Sponsored Brands, Sponsored Display, DSP access) are now available to Seller Central sellers with Brand Registry. The platform gap is closing.
Many brands now operate on both 1P and 3P simultaneously. Amazon handles the top 15 SKUs on Vendor Central while the brand runs the long tail on Seller Central. This hybrid approach didn't exist in the mainstream in 2019. It's standard practice now.
Pros:
Cons:
Best for: Brands with a dedicated Amazon team or ecommerce manager who can handle daily operations. If you don't have that, this option burns time fast.
Pros:
Cons:
Best for: Almost no one. This is the least effective option. Multiple 3P sellers on the same product create a race to the bottom on price. Unless you have ironclad authorized seller agreements and active MAP enforcement, this destroys brand equity.
Pros:
Cons:
Best for: Brands that want to offload Amazon operations but don't want to manage daily tasks. This mirrors the Vendor Central model (you sell wholesale, someone else handles the retail side) but gives you more partnership control.
Pros:
Cons:
Best for: Mid-market to enterprise brands with diverse catalogs. If Amazon orders 15 of your 50 SKUs reliably, keep those 15 on Vendor Central and move the other 35 to Seller Central.
Before you flip the switch:
Create the account. Use the same business entity and tax information. Link to the same bank account for disbursements.
Enroll in Brand Registry. Required for A+ Content, Sponsored Brands, storefronts, and counterfeit protection. You'll need a registered trademark.
Set up FBA (if using FBA). Enroll in Fulfillment by Amazon, configure shipping plans, and prepare for inbound placement fees (Amazon may require you to split shipments across multiple warehouses).
Configure tax settings. Ensure sales tax collection is set up correctly for all states where you have nexus.
This is the trickiest part. Your ASINs already exist. Amazon owns the 1P inventory. You need to create seller offers on those same ASINs without losing the Buy Box during the cutover.
Steps:
Common mistake: Brands create new ASINs instead of listing on the existing ones. This splits reviews, kills rank, and confuses customers. Don't do this.
Most brands use FBA to maintain Prime eligibility. But FBA comes with fees and operational complexity that didn't exist on Vendor Central.
FBA fee components (2026):
FBM (Fulfilled by Merchant) alternative: You ship directly to customers. No FBA fees, but you lose Prime eligibility unless you qualify for Seller Fulfilled Prime (SFP), which has strict performance requirements.
Decision heuristic: If your products are under 2 lbs and high-velocity, FBA usually wins. If you have bulky, slow-moving items, FBM or a 3PL hybrid can be cheaper.
Vendor Central ads don't transfer to Seller Central. You rebuild from scratch.
Sponsored Brands, Sponsored Display, and DSP are now available to Seller Central sellers with Brand Registry. In 2019, these were Vendor-exclusive. The advertising gap has closed.
A+ Content does not automatically transfer from Vendor Central to Seller Central. You must recreate it.
Timeline: Budget 2–4 weeks for content recreation if you have 20+ ASINs with A+ Content.
Vendor Central (1P) margin example:
Retail price: $50
Wholesale price to Amazon: $28 (56% of retail)
Chargebacks and co-op: -$3
Net to you: $25 (50% margin)
Seller Central (3P) margin example:
Retail price: $50
Referral fee (15%): -$7.50
FBA fee: -$5.00
Advertising (20% ACoS): -$10.00
Net to you: $27.50 (55% margin)
Margin improvement: $2.50 per unit, or 10% relative gain.
Reality check: The above assumes competent advertising management. Poorly run campaigns can push ACoS to 40–50%, erasing the margin advantage.
Monthly recurring:
Per-unit:
Per-shipment:
Advertising:
Total effective fee rate: 30–40% of revenue for a well-run 3P operation, compared to 40–50% wholesale discount on 1P. The margin gain is real but requires operational discipline.
Pricing and compliance:
Communication and transparency:
Advertising expertise:
Inventory and fulfillment:
Prime eligibility:
Brand Registry and content:
Seller rating:
Data access:
Contract terms:
A good 3P partner should feel like an internal team member, not a vendor. If they're evasive about data transparency, pricing compliance, or advertising performance, walk away.
Yes. Many brands run a hybrid model. Amazon handles high-velocity SKUs through Vendor Central while the brand manages long-tail products on Seller Central. This requires coordination to avoid Buy Box conflicts, but it's a common strategy for mid-market and enterprise brands.
A+ Content does not automatically transfer. You'll need to enroll in Brand Registry (requires a registered trademark) and recreate your A+ Content in Seller Central format. The images and copy can be reused, but you'll need to rebuild the modules.
In most cases, yes. Brands typically see 5–15% margin improvement on 3P because they're selling at retail minus fees instead of wholesale minus chargebacks. However, this assumes competent advertising management and inventory planning. Poorly run 3P operations can have worse margins than 1P.
You don't create new ASINs. You create seller offers on the existing ASINs that Amazon currently owns. The tricky part is coordinating inventory timing so Amazon's 1P stock runs down as your FBA inventory arrives, avoiding Buy Box conflicts and stockouts.
Buy Box loss during the transition window, advertising disruption (campaigns don't transfer; you rebuild from scratch), inventory gaps if FBA inbound processing takes longer than expected, and margin erosion if advertising costs spiral out of control.
Yes. Reviews are tied to the ASIN, not the seller. As long as you list on the existing ASIN (not a new one), all reviews remain intact.
The transition from Vendor Central to Seller Central is not a one-day flip. It's a coordinated migration that requires inventory planning, content recreation, advertising ramp-up, and Buy Box management.
But for most brands, the margin improvement (5–15%), pricing control, and access to better data make the move worth it. Whether you manage the account in-house or partner with a 3P seller, the playbook is the same: plan the cutover carefully, preserve your rank and reviews, and treat the first 90 days as a stabilization period.
If you're evaluating 3P partners and want a team that manages Amazon operations as an extension of your brand, SupplyKick's advertising, content optimization, and Brand Registry support are built for exactly this transition.
Connect with our team about your 1P-to-3P transition