What Amazon Expects From FBM Sellers, and a Daily Routine to Meet It

Selling merchant-fulfilled gives you control of the box, the carrier and the margin. It also hands you every duty that Amazon performs for FBA sellers: shipping on time, proving it with tracking, answering shoppers, taking returns and keeping in good shape the metrics Amazon watches. None of these tasks is hard on its own. The risk comes from inconsistency, because a missed pickup or a week of unread messages shows up in your account health metrics, and from there in the Buy Box and in your standing. This article lists the duties, explains how each one is measured and ends with a daily routine.

The promise you make when you list

Two settings turn into a public promise: your handling time and your shipping template. Together they produce the delivery date a shopper sees on the page. Once an order arrives, that promise becomes a ship-by date for you and an estimated delivery date for the shopper, and Amazon measures how well you keep both.

That is why handling time should reflect the worst week you are likely to face, including weekends, carrier cutoffs and holidays, not the best one. A short handling time can help an offer look attractive, but each missed date costs more than a longer, reliable promise would have.

Ship by the date, with tracking that holds up

Four measures cover the shipping side, and each has a target shown in Account Health. Late shipment rate counts orders you confirm after the ship-by date. Valid tracking rate looks at whether the tracking numbers you enter are real and match a carrier's scans. On-time delivery rate checks arrival against the promised date. Pre-fulfillment cancel rate counts orders you cancel yourself before shipping. Check the current targets and the rolling period for each in your dashboard.

A hypothetical shows the arithmetic. If you confirm 200 orders in a period and 10 are confirmed after the ship-by date, the late shipment rate is 5%. A handful of missed pickups can be enough to move a rate when volume is small, which is why small sellers feel these measures sharply.

Three habits protect the numbers. Confirm shipment with a real tracking number from a carrier you actually used, on or before the ship-by date. Keep stock counts accurate, particularly if you also sell on other channels, because an oversold item forces a cancellation. And consider buying labels through Amazon's own shipping service, which fills in tracking for you and may carry protections. Check the terms, since they change.

Delivery is the part you control least, so plan for it. Choose shipping services with a margin against the promised date instead of the tightest fit, and check tracking each day for parcels that show no scans or sit still. When a parcel is clearly late, write to the shopper before they write to you, with a new date and an offer to replace or refund if it does not arrive. A lost or damaged parcel is yours to resolve with the carrier, and the shopper should never be the one who has to chase it.

Messages: answer fast and stay inside the rules

Shoppers who write to you through Buyer-Seller Messaging expect a reply soon, and Amazon expects the same. The expectation has long been about one day, so check the current wording. Fast replies prevent most problems. A shopper who hears nothing about a late parcel is the one who opens an A-to-z Guarantee claim.

The rules matter as much as the speed. Messages should deal with the order, not promote your products, point to outside sites or ask for a review beyond what Amazon's own tools allow. Keep a short set of templates for common questions, such as delivery status or a damaged parcel, and a log of each case, so a repeated problem is visible.

Returns and refunds are yours too

When you fulfill an order, you also take the return. Amazon sets minimum return terms for merchant-fulfilled orders, and in general you must give shoppers a way to return the item and refund them promptly. Return settings in Seller Central let you set the return address and rules within those minimums. Amazon also watches how quickly you answer return requests and how satisfied shoppers are with the way you handle them, so a request that waits is a metric at risk.

Build the cost into your pricing. A returned parcel costs you the postage twice if you pay for the return label, plus inspection time, and a unit that cannot be resold is lost. Claims need an answer within the window Seller Central states. Claims that are granted, along with negative feedback and chargebacks, count toward the order defect rate, so a polite reply and a fair refund are often cheaper than a dispute.

How the duties connect to the Buy Box and your account

Each duty above feeds the same place: your Account Health dashboard. Sustained misses can lead to warnings and, eventually, limits on your ability to sell. The Featured Offer is a related stake. An FBM offer generally needs good standing to be eligible, and delivery speed and price against other offers also play a part. Doing the basics well is the cheapest way to stay in contention, because you are measured against sellers who ship from Amazon.

Shipping charges count as part of the comparison, since shoppers and Amazon both look at the total price including delivery. A product price that looked competitive can lose once postage is added, so review your shipping template whenever carrier rates change. Handling time and delivery speed are visible to shoppers as well, and a faster promise that you can keep reliably is worth more than a faster one that you sometimes miss.

When a metric slips, treat the notification as a work order. Open the detail view behind the figure in Account Health, which lists the specific orders that caused it, and look for a pattern: one carrier, one product, one day of the week, or one packing shift. A late shipment spike that always follows a Friday cutoff is a scheduling problem, and a run of tracking errors usually comes from one label or upload step. Fix the cause, then write a short plan if Amazon asks for one.

A daily routine that keeps you ahead

The routine below is built around the carrier cutoff, since that is the hard deadline. Adjust the times to your pickups.

The short version

• Set handling time for your worst likely week and build it into the shipping template.
• Confirm each shipment with real tracking on or before the ship-by date.
• Check the target for each Account Health metric and watch your own rates weekly.
• Reply to buyer messages the same working day, within Amazon's messaging rules.
• Know your return terms and price returns into each product.
• Write the routine down, name a backup and use it before every break.