The Seller Fulfilled Prime trial period is where most SFP attempts succeed or fail. Amazon turns on the Prime badge for your eligible offers and then judges you on real Prime orders. We run a dedicated trial plan so the warehouse is never the reason you miss enrollment.
How the SFP trial period works
The SFP trial period is a probation window in which Amazon displays the Prime badge on your eligible offers and measures how well you deliver on real Prime orders. You must ship a minimum number of Prime trial orders within the window while meeting Amazon's performance targets for on-time delivery, valid tracking and cancellations. If you pass, you are enrolled in the program. If you fail, the trial ends and you typically have to wait before you can try again.
The exact order minimum, window length and thresholds are set by Amazon and can change, so confirm the current terms in Seller Central before you start. What does not change is the principle: the trial is judged on live customers, so there is no practice round. Every order counts.
Preparing before you request the trial
Preparation before the trial request matters more than anything that happens during it. We recommend running your SKUs through our operations as standard Merchant Fulfilled orders first, so receiving, putaway, packaging and labeling are proven before Prime is switched on.
During that run-up we confirm your Prime shipping template, ship-from addresses and regions, test carrier pickups at your intended cutoff, and verify that inventory sync to Amazon is accurate. We also look at which SKUs to include. Fragile items, oversize items or SKUs with tight stock levels can be held back from Prime at first and added after enrollment. Starting the trial with a clean, well-stocked set of SKUs gives you the best chance of hitting the order minimum without risky orders dragging your metrics down.
What we do during the trial
During the trial, every Prime order is reviewed daily from import to first carrier scan. We check that each order shipped within handling time, that tracking posted to Amazon, and that the carrier scanned the package the same day. Any order at risk of arriving late is flagged so you can see it before the customer does.
Weekend coverage is in place from day one, because a trial order placed on Friday night is measured the same as one placed on Tuesday morning. We also watch carrier performance by region. If a lane shows early signs of slipping, we can upgrade service for that lane or recommend removing the region from your Prime template until the trial is complete. You get a short daily trial summary so you always know where you stand.
After enrollment
After enrollment, Seller Fulfilled Prime performance is still measured continuously, and Amazon can remove the badge if your metrics drop. The trial plan becomes your standard operating plan rather than a one-time effort.
We shift from daily to weekly metric reviews once volume is stable, and add SKUs and Prime regions gradually rather than all at once. Peak season gets its own plan, with earlier carrier pickups, extra weekend shifts where needed and tighter safety stock on top sellers. Many sellers also add a second or third inventory node after enrollment to widen their Prime regions. We help you sequence those changes so growth never puts the badge at risk.
What's included
- Pre-trial Merchant Fulfilled run to prove workflows
- Prime template and region review
- Carrier pickup testing at your target cutoff
- SKU selection guidance for a clean trial
- Daily trial order review and summary
- Weekend shipping from day one
- Lane-level late-risk alerts
Frequently asked questions
How many orders do I need to pass the SFP trial?
Amazon sets a minimum number of Prime trial orders that must be shipped within the trial window, and that number can change. Check the current requirement in Seller Central, then plan inventory and advertising so you can reach it while meeting the performance targets.
What happens if I fail the SFP trial?
If you fail the SFP trial, Amazon ends the trial and removes the Prime badge from your offers. You can usually reapply after a waiting period, so it is worth fixing the root cause, whether warehouse, carrier or inventory, before trying again.
Should I include all my SKUs in the trial?
Usually not. Start the trial with well-stocked, easy-to-ship SKUs and add fragile, oversize or low-stock items after enrollment, when a single problem order carries less weight.
Can I switch 3PLs during the trial?
It is risky. A warehouse change mid-trial introduces new receiving, labeling and carrier variables while every order is being measured. If you are unhappy with your current warehouse, it is usually better to let the trial end, move, prove the new workflow and then reapply.