Overview

Amazon's order fulfillment settings give sellers control over how and when orders are processed, including whether operations run on weekends. These settings directly affect handling time calculations, estimated delivery dates shown to customers, and overall shipping performance metrics. Getting them right is essential for maintaining strong account health and meeting buyer expectations.

Key Points / What Sellers Need to Know

• Weekend operations are optional for Merchant Fulfilled (MFN) orders — Sellers who fulfill their own orders can choose whether to enable Saturday and/or Sunday as operational days, giving them flexibility based on their warehouse schedules.
• Weekend operations may be mandatory for certain programs — Some fulfillment programs, such as Seller Fulfilled Prime (SFP), require weekend processing to meet the faster delivery promises associated with those offers.
• Settings affect estimated delivery dates — When you enable weekend operations, Saturday and Sunday count as business days for handling time calculations, which can result in faster promised delivery dates for customers.
• Shipping performance is impacted — Enabling weekends means Amazon expects you to actually ship on those days. Failing to do so can negatively affect your Late Shipment Rate and other performance metrics.
• Configuration location varies — Depending on whether you use automated handling time or manual settings, the weekend operations toggle can be found in different areas of your Seller Central shipping settings.

How Weekend Operations Work

When a seller enables weekend operations in their fulfillment settings, Amazon treats Saturday and/or Sunday as regular business days for the purpose of calculating handling time and estimated delivery dates. For example, if a seller has a one-day handling time and receives an order on Friday, enabling Saturday operations means that order would be expected to ship by Saturday rather than the following Monday. This can improve the delivery speed shown on product listings, potentially boosting conversion rates and Buy Box competitiveness. However, sellers must be prepared to actually process and ship orders on those days, as Amazon tracks on-time shipment rates closely.