Keep Solo Amazon Business Offers Alive: 90% Business-Hour Delivery Checklist

Start with the number on your screen: the Business Hour Delivery Rate for the last 14 days. For a solo seller-fulfilled Amazon Business offer, that number is the difference between a quiet spreadsheet and a warning notice. The rule is a routing question: can the package reach the customer while the customer is open?

Amazon will require professional seller-fulfilled Amazon Business orders to meet a 90% Business Hour Delivery Rate starting September 30, 2026. The rule applies in the United States, United Kingdom, and Germany. Standard retail consumer orders do not enter the calculation; only seller-fulfilled orders tied to Amazon Business customer accounts do. FBA offers and standard retail offers are outside the Business Hour Delivery Rate deactivation risk.

The timing gives you room to fix the route before the deadline. If your rate is under 90% when enforcement starts, you get a warning and suggested fixes, not an immediate takedown. If you have not raised the rate above 90% by October 30, 2026, seller-fulfilled Amazon Business offers can face deactivation. The practical work is to find the SKUs and carriers that are already dragging the rolling window below the line.

The rate is a 14-day routing test

Amazon calculates the Business Hour Delivery Rate by looking at a rolling 14-day window and counting seller-fulfilled Amazon Business shipments that reach the customer while the customer is open. A delivery that arrives after the customer closes does not help the number. A solo seller controls the moment the package leaves, but not the moment the carrier tries the door. UPS, FedEx, or USPS routing can change the outcome, so the same SKU can look safe now and fragile after a route change.

The spreadsheet should be small and sortable. Track SKU, customer type, ship date, carrier, delivery date, and whether delivery happened while the customer was open. You do not need a dashboard. You need a table that shows which rows are red and why. Update it after each order, because a carrier route change can move a healthy SKU into the miss column.

Four checks keep business offers alive

Run these checks before September 30, 2026, and again after any carrier change. Each step should be quick if the table is tidy.

• Measure the rolling 14-day Business Hour Delivery Rate for each SKU and note which SKUs sit below 90%.
• Flag the SKUs and carriers whose recent deliveries miss business hours, and note whether the miss came from late departure or carrier routing.
• Tighten ship-by time or switch carriers for the flagged SKUs when a package leaves too late to reach the customer while open.
• Move B2B-heavy SKUs to FBA when the fix costs more time than margin and business customers order the SKU often.

The order matters. First see the rolling window. Then separate the part you control from the part the carrier controls. A late departure points to a cutoff fix. A carrier routing miss points to a carrier fix. A SKU that keeps missing despite early departure may need a fulfillment model change.

FBA is the margin-preserving exit for fragile SKUs

FBA is a routing move for the SKUs where seller-fulfilled delivery keeps failing during business hours. If a SKU sells mostly to business customers and your carrier cannot reliably deliver while they are open, moving it to FBA removes the seller-fulfilled delivery risk. Keep the SKU in seller-fulfilled form when you can ship early enough and the carrier performs.

Do not move every SKU to FBA just because the rule is coming. Some SKUs are easy to ship early and still land during business hours. Others are ordered by business customers in patterns that make seller-fulfilled delivery fragile. Count the hours before you count the fees. A fix that needs repeated attention is a cost, and a SKU that needs constant attention drains margin.

Use the checklist to keep the offers alive without adding headcount or a growth project. If a SKU cannot clear the test, move it or retire it.