If any part of your Amazon business sells to Amazon Business customers and you fulfill those orders yourself, mark September 30 on your calendar. Amazon just added a new performance metric that most FBM sellers have never had to track before, and if you miss the threshold, your Business Buyer offers can get switched off in a matter of weeks.
This one slipped past a lot of sellers because it was announced back in July and only shows real teeth now that the enforcement date is close. Here is what the Business Hour Delivery Rate actually requires, why sellers are frustrated with it, and what to check before the deadline hits.
What the Business Hour Delivery Rate actually measures
Amazon Business, the B2B side of the marketplace, now tracks a metric called the Business Hour Delivery Rate, or BHDR, for every seller who fulfills their own orders (FBM) to business customers. It measures the percentage of your seller-fulfilled Business shipments that arrive while the buyer’s location is actually open, calculated on a rolling 14-day window.
The bar is set at 90%. Fall below that and Amazon starts flagging your account with improvement notices. Stay below it past the grace period and your offers get deactivated, but only for Amazon Business customers specifically.
Your standard retail listings keep selling to regular Prime and non-Prime shoppers. If the same SKU is fulfilled by Amazon (FBA), that channel is untouched too. The deactivation only hits the B2B lane on seller-fulfilled offers, which is exactly why some sellers might not notice the problem until a chunk of their wholesale or bulk-order revenue quietly disappears.
The two dates that actually matter
There are two separate milestones here, and mixing them up is an easy way to get caught flat-footed.
September 30, 2026 is when enforcement starts. If your BHDR is under 90% at that point, you get flagged and Amazon gives you specific improvement recommendations tied to your account data.
October 30, 2026 is the real deadline. If you are still below 90% a month later, Amazon deactivates your seller-fulfilled offers to Business customers. That is a full month of runway to fix the problem after the first warning, which is more lead time than Amazon gives for a lot of its performance metrics, but it still requires you to actually notice the flag and act on it.
Why sellers are pushing back on this one
The complaint showing up across seller forums is not that the idea is unreasonable. Delivering during a business’s open hours makes obvious sense for a B2B buyer who needs someone on-site to receive a shipment. The frustration is about how little control sellers have over the exact delivery window once a package leaves their hands.
A carrier that runs an overnight route and drops a package at 11:40 PM counts against you the same as one that never showed up. A delivery that lands on a federal holiday when a buyer’s warehouse is closed counts against you too, even though the seller had no say in the carrier’s routing that day. Sellers have specifically flagged holidays like Juneteenth as a source of unfair dings, since carriers do not always sync their schedules to every business customer’s actual hours of operation.
Amazon Business also does not let sellers exclude business accounts from their catalog on a case-by-case basis, so a seller cannot simply opt certain SKUs out of B2B sales to sidestep the metric. If you are enrolled in Amazon Business at all, every seller-fulfilled shipment to a Business buyer counts toward your BHDR, whether that specific order was one you were actively courting or one that just came in organically.
What to actually check before September 30
None of this is complicated to audit, it just needs to happen before the deadline instead of after the deactivation email lands.
Start by pulling your current Business Hour Delivery Rate in Seller Central and breaking it down by SKU, carrier, and region rather than looking at the account-wide average. A blended number can look fine while one specific carrier lane or one region is quietly dragging you toward the cutoff.
If Amazon Business realistically represents a meaningful slice of your FBM revenue, and for a lot of established sellers it runs somewhere in the 15 to 30 percent range of the catalog, this is worth treating as a real priority rather than a background compliance task.
A few concrete moves worth making:
- Separate your B2B and B2C fulfillment queues where your systems allow it, and route Business orders through carriers or services that can commit to business-hours delivery.
- Turn on Automated Handling Time and Shipping Settings Automation in Seller Central. Amazon has said pairing automation with its own Buy Shipping service comes with a compliance safety net for this specific metric.
- Set realistic handling times instead of aggressive ones. A slightly longer stated handling window that a carrier can actually hit beats a fast promise that ends up delivering at midnight.
- For any SKU sitting in that risky 85 to 92 percent range, consider moving it to FBA before the end of September rather than betting on a last-minute carrier fix. FBA shipments are not subject to this metric at all.
- Model what a Business channel deactivation would actually cost you in revenue before deciding how much operational effort to put into fixing it. For some sellers, migrating a handful of SKUs to FBA is genuinely less work than re-engineering carrier routing.
Frequently asked questions
Does the Business Hour Delivery Rate apply to FBA sellers?
No. This metric only tracks seller-fulfilled (FBM) shipments to Amazon Business customers. If a SKU is fulfilled by Amazon, it is not counted against your BHDR at all.
Will falling below 90% affect my regular retail sales?
No. The deactivation Amazon has described applies only to your seller-fulfilled offers for Amazon Business customers. Your standard consumer-facing listings are not affected by this specific metric.
How is the 90% threshold actually calculated?
Amazon measures it as the percentage of your seller-fulfilled Business shipments that arrive during the buyer’s stated operating hours, tracked on a rolling 14-day basis rather than a fixed monthly snapshot.
What happens between September 30 and October 30 if I am below the threshold?
That month is a grace period. Amazon flags the account and provides specific improvement recommendations. Deactivation of Business offers only happens if the rate is still below 90% after that window closes on October 30.
Can I just opt out of selling to Amazon Business customers?
Not selectively. Amazon Business does not currently allow sellers to exclude Business buyers order by order, so if you are enrolled in the program, every seller-fulfilled shipment to a Business customer counts toward this metric.
If you are trying to figure out whether this rule actually threatens meaningful revenue for your account, or you want a second set of eyes on your broader Amazon strategy, ads, listings, or expansion into channels like Shopify and TikTok Shop, Depu is available for freelance Amazon FBA and e-commerce growth consulting.
Sources:
Shopifreaks: Amazon will penalize sellers who don’t deliver 90% of Amazon Business orders during buyers’ business hours starting September 30
My Amazon Guy: New Amazon Business Hour Delivery Rate Rule Starts Sept 2026
Nova: Amazon 90% Business Hour Delivery Rate hits FBM sellers Sept 30