Seller Fulfilled Prime (SFP)
Seller Fulfilled Prime (SFP) lets approved FBM sellers earn the Prime badge by fulfilling orders from their own warehouses against Amazon's strict Prime delivery SLA. It combines FBM economics with FBA's Buy Box weight.
Seller Fulfilled Prime (SFP) allows FBM sellers who can meet Amazon's Prime delivery standard to display the Prime badge on their listings without sending inventory into FBA. They keep the merchant-fulfilled cost structure and gain the Buy Box weight FBM normally lacks.
After being closed to new sellers for several years, Amazon re-opened SFP enrollment with a trial-period requirement.
The qualification gauntlet
To get into SFP, a seller passes a trial period in which Amazon measures:
| Metric | Threshold |
|---|---|
| On-time delivery rate | ≥93.5% |
| Cancellation rate | ≤1.5% |
| Valid tracking rate | ≥99% |
| Same-day or next-day delivery | Required for designated zip codes |
| Use Amazon-approved carriers + Buy Shipping | Required |
After the trial, ongoing performance is monitored continuously; metrics dropping below threshold revokes SFP status.
Why SFP exists
Three commercial cases where SFP is the right choice:
- Oversize items. Cast iron, large furniture, gym equipment — FBA fees crush margin, but losing the Prime badge in these categories kills conversion. SFP solves both.
- High-velocity SKUs where storage fees compound. Long-tail catalogue items that sit 90+ days incur FBA storage penalties.
- Direct-from-manufacturer pallet fulfilment. B2B orders that ship from the seller's facility rather than fanning out through Amazon's network.
SFP vs. FBA economics
Worked example, 12-inch cast iron skillet at €60:
| Cost | FBA | SFP |
|---|---|---|
| Referral fee (15%) | €9.00 | €9.00 |
| FBA fulfilment | €8.40 | — |
| Monthly storage | €0.45 | — |
| Seller ship cost (3PL) | — | €5.80 |
| Total fees | €17.85 | €14.80 |
SFP keeps €3 of margin per unit. Across 1,000 units/month, that is €3,000.
Common mistakes
- Underestimating the SLA discipline. The Prime promise is hard to keep at scale; one missed week can drop on-time delivery below threshold.
- Treating SFP as a fee-only optimisation. It is also an operational commitment — staffing, carrier contracts, weekend fulfilment.
- Mixing SFP and FBA on the same ASIN. Each SKU should commit to one fulfilment method to keep ASIN-level economics clean.