Amazon Requires SKU-Level Handling Time from June 29: What Every FBM Seller Must Do Now

Starting June 29, 2026, Amazon requires accurate SKU-level handling time on every seller-fulfilled listing. If your handling times are set at the account level or you're relying on defaults that don't reflect your actual shipping speed, that changes on Sunday. Amazon begins monitoring each SKU individually, and sellers who aren't compliant enter a 30-day correction window before Amazon overrides the setting itself.

This isn't a hypothetical policy shift. Amazon has been tracking the gap between stated and actual handling times for months. The enforcement infrastructure is already in place. June 29 is the date it goes live for all seller-fulfilled merchants who haven't already acted.

What the Rule Actually Requires

The requirement is straightforward: the handling time configured on each SKU must match your actual fulfillment speed, measured by the gap between order date and shipping confirmation. Amazon monitors this on a rolling 30-day basis at the SKU level, not the account level.

An account-level default of "1-2 days" applied uniformly across 200 SKUs, some of which you ship same-day and others that realistically take three days to pack and hand off to the carrier, is no longer sufficient. Amazon wants the number that reflects what actually happens for each product.

Exemptions apply to custom and handmade products, and to Heavy and Bulky less-than-truckload SKUs. Outside those categories, the rule applies to every seller-fulfilled ASIN.

Two Ways to Comply

Amazon has given sellers two compliance paths, and they work quite differently in practice.

Option 1: Automated Handling Time

Automated Handling Time (AHT) pulls from your recent confirmed shipping history to set handling time automatically at the SKU level. If you've been consistently shipping a product in one day, Amazon sets one day. If another SKU has averaged two days, it gets two days. The system updates based on observed behavior rather than requiring manual input per ASIN.

The most important benefit of AHT is late shipment rate (LSR) protection. When AHT manages your handling times, Amazon absorbs the risk of handling time miscalculations in your LSR calculation. That protection disappears the moment you override AHT with manual settings. For sellers with large, mixed catalogs, AHT is the lower-risk and lower-maintenance choice.

To enable AHT: navigate to Settings, then Shipping Settings, then the Handling Time tab inside Seller Central. The toggle is there. Amazon recommends enabling it before June 29.

Option 2: Manual SKU-Level Settings

If you want full control, you can set handling times manually per SKU through a bulk inventory feed or through individual listing edits. Amazon will then monitor your accuracy over a 30-day window. If the stated handling time consistently mismatches actual ship dates, you receive a warning. If you don't correct within 30 days, Amazon overrides the setting.

The manual route makes sense for small catalogs with clear handling time variation by product type, and where the team has the discipline to audit SKU-level accuracy regularly. For catalogs above 50 SKUs with real variation in product preparation time, AHT is easier to maintain correctly over time.

Why Amazon Is Tightening This Now

Delivery promise accuracy is one of Amazon's core customer experience metrics, and the platform's research is consistent on this point: when a shopper sees "Ships in 1-2 days" and the package leaves the warehouse on day 4, the harm isn't limited to that transaction. It degrades the overall reliability signal that drives Prime satisfaction and repeat purchase rates across the marketplace.

Sellers who pad handling times to give themselves buffer have been eroding that signal. But the enforcement is symmetric: a listing that says "2-3 days" when the seller ships same-day is also a problem. It makes the delivery promise look worse than reality and suppresses conversion. Amazon's data team sees both directions of the mismatch.

The business case for accurate handling times is real. Sellers who tightened their settings to match actual ship speed during Amazon's 2025 beta testing reported measurable improvements in Buy Box share, because faster and more reliable delivery contributes directly to the offer scoring that determines which listing wins the box.

What Happens If You Do Nothing

Enforcement is incremental, not immediate. If a SKU has inaccurate handling time after June 29, the listing doesn't disappear on June 30. The 30-day window is real and Amazon has been explicit about it.

What you do risk immediately is Amazon's override authority. A seller who enters the 30-day window without acting will have Amazon set the handling time based on observed shipping behavior. In many cases that will be accurate. In others, if shipping has been inconsistent, Amazon could assign a handling time longer than you'd prefer, and the remedy is fixing the underlying operational inconsistency rather than just updating the field.

Sellers who consistently ship faster than their stated handling time are the group most likely to see Amazon take control of the setting proactively. The platform is motivated to surface the fastest accurate promise, and conservative settings will be corrected.

Practical Steps Before the Deadline

• Pull your Seller Central shipping report for the last 60 days and calculate the average days between order date and ship confirmation by ASIN.
• Compare those figures against your current handling time settings. Flag any SKU where the gap is more than one day in either direction.
• Decide on a compliance approach: AHT for the whole catalog, manual settings for high-volume SKUs with predictable and well-understood handling, or manual across the board if the catalog is small enough to audit regularly.
• Enable AHT or update manual SKU settings before June 29 to avoid entering the enforcement window without having acted.
• If you use a multichannel or warehouse management system, confirm that your integration supports SKU-level handling time fields. Some older integrations pass only account-level defaults and will not push per-ASIN overrides correctly.

How TKL Helps

We've been working through this deadline with seller-fulfilled clients over the past several weeks. The technical setup for Automated Handling Time takes under an hour. The harder part is understanding your own shipping performance data well enough to know which compliance path fits your operation, and whether specific SKUs have genuine handling time variation that needs separate treatment from the rest of the catalog.

For clients running mixed FBM and FBA catalogs, we're also reviewing how handling time settings interact with the updated Seller Fulfilled Prime delivery standards that take effect July 6. The two deadlines are close enough that addressing them together, with a clear view of which SKUs are affected by each rule, is more efficient than treating them as separate projects.

If you need a fast audit of your current handling time configuration and a clear recommendation on which compliance path fits your catalog, that's a straightforward engagement. Reach out before Sunday.