Amazon put a real date on Business Hour Delivery Rate.
If you fulfill yourself to Amazon Business in the US: from September 30, 2026 you need a Business Hour Delivery Rate of 90% or higher. It is a rolling 14-day metric. Below 90% on that date, they notify you. Still below on October 30 - your seller-fulfilled offers may be deactivated for Business customers only. FBA and retail stay out of this.
Two camps. One opens Account Health today and looks at BHDR while the rolling window still has room. The other waits for September 29 and hopes the number moves overnight.
This time the recommendation is simple and it matters: do not get complacent, and do not wait until the last minute. This is really not the moment to sit in that second camp.
A rolling 14-day rate does not forgive a last-minute scramble. Late fixes miss September 30.
Calm move: check the number now. Tighten handling and transit if you need to. Do not panic-edit the whole catalog.
If you want this done clean before the window closes - Talk to us.