Amazon Is About to Judge You on When the Carrier Shows Up

Amazon confirmed this month that professional sellers will need to maintain a Business Hour Delivery Rate of 90% or higher on seller-fulfilled orders to Amazon Business customers. Enforcement starts September 30. If you are still below 90% on October 30, Amazon can deactivate your seller-fulfilled offers for Amazon Business buyers.

If you run FBM and you have any B2B volume, this is the deadline to put on the wall. If you are FBA only, you can stop reading. FBA offers and standard retail orders are not affected.

What the metric actually measures

Business Hour Delivery Rate, or BHDR, is the percentage of your seller-fulfilled shipments to Amazon Business customers that arrive inside that buyer’s stated operating hours. It is calculated over a rolling 14-day window, so it moves fast in both directions. A bad week is not a permanent sentence, and a good week is not a cushion.

The metric already exists in Seller Central. What changed is that it now carries a hard threshold and a real consequence attached to it.

The enforcement path is a two-step:

• September 30. If you are below 90%, Amazon notifies you and sends recommendations.
• October 30. If you have not improved, seller-fulfilled offers may be deactivated for Amazon Business customers.

That is a 30-day cure period, and it lands directly on top of Q4 prep. Not an accident, and not convenient.

Why sellers are pushing back, and why they are partly right

The objection showing up across seller forums is straightforward: you do not decide when UPS or FedEx rings the doorbell. Sellers report deliveries landing near midnight, before a business opens, or on holidays like Juneteenth when nobody is there to receive. You picked the carrier and the service level. You did not pick the delivery window.

That criticism is fair on the merits. Amazon is measuring an outcome that sits partly with the carrier. It is also, practically speaking, beside the point. Amazon has held sellers to carrier-dependent outcomes for years. On-Time Delivery Rate works the same way. The metric is not going to be withdrawn because it is philosophically unfair.

There is a second thing worth naming. Amazon Business does not let sellers block business customers. You cannot opt out of the B2B demand and therefore you cannot opt out of the metric. The only levers you have are carrier selection, service level, ship timing, and moving the SKU to FBA.

Note the shape of that last option. A rule that is hard to pass with FBM and irrelevant under FBA is a rule that pushes volume toward FBA. Whether that is the design intent or a side effect, it is the effect. Price your response accordingly rather than assuming Amazon will meet you halfway.

The part that is genuinely in your control

Most sellers failing this are not failing because of exotic carrier behavior. They are failing on ship timing.

A package handed to the carrier late in the day gets a delivery attempt at the tail of the next route. Tail-of-route on a commercial address is exactly when the office is closed. Move the handoff earlier and a meaningful share of your late deliveries moves into the middle of the day, which is inside almost every buyer’s operating hours.

The second lever is service level. Ground economy services optimize for cost and have the widest delivery windows. Business-address deliveries on those services are the ones landing at 8pm. Upgrading service level on B2B orders specifically, not across your whole book, is usually cheaper than most sellers assume because B2B order values tend to run higher.

The third lever is the weekend. A Friday afternoon handoff often becomes a Saturday or Monday delivery, and Saturday is closed for most commercial buyers. Watch your Friday cut-off.

Run the math before you react

Do not blanket-upgrade shipping across the catalog to protect a metric that applies to a slice of your orders. Pull your Amazon Business order share first. For a lot of sellers it is single-digit percent of units. If that is you, the fix is narrow: route B2B orders differently and leave the rest alone.

If Amazon Business is a serious share of your seller-fulfilled volume, the calculation is different and worth doing properly. Compare the annual cost of upgraded service on those orders against the revenue at risk if those offers go dark for B2B buyers on October 30. In most cases the shipping upgrade is far cheaper than the lost channel. That is the whole decision, and it takes an afternoon.

The SKUs where neither works are the ones to look at for FBA. Heavy, low-margin, slow-moving items shipped on economy services are where the upgrade cost exceeds the B2B revenue. Move those or accept the B2B deactivation on them deliberately.

What to do in the next two weeks

1. Pull your BHDR in Seller Central and look at the actual number. Most sellers have never opened this metric. You cannot plan against a gap you have not measured.
2. Segment your Amazon Business orders as a share of seller-fulfilled units. This decides whether the fix is narrow routing or a real fulfillment change.
3. Move your ship cut-off earlier on B2B orders. Cheapest lever on the board and it addresses the most common failure mode. Do this first.
4. Audit which service levels your B2B orders ship on. Economy ground to commercial addresses is where the late deliveries live.
5. Check your Friday handoff timing. Weekend arrival at a closed office is a silent, repeatable failure.
6. Be at 90% by mid-September, not September 30. The metric is a rolling 14-day average, so you need the improvement in place roughly two weeks before the date you want it to read correctly.

That last point is the one people will get wrong. Because BHDR is a trailing 14-day calculation, changes you make on September 29 do not show up in the September 30 reading. If you want to be compliant on the enforcement date, the operational change has to be live by mid-September.

The blunt read: this is a modest operational fix wearing the costume of a crisis, but only if you start now. Sellers who address it in August will spend a little on shipping upgrades and move on. Sellers who discover it in the October 30 deactivation notice will be trying to fix carrier routing in the middle of peak season, which is the worst possible time to be renegotiating anything with a carrier.

Carrier routing, cut-off optimization, and the FBM-versus-FBA call per SKU are the kind of operational work we run for the brands we operate. If you have Amazon Business volume on seller-fulfilled offers and want the gap closed before the September 30 date, a strategy assessment is the fastest place to start.