要获得“次日达”资格，您必须至少已在亚马逊上销售商品 90 天。

此外，买家希望包裹能够快速送达，因此您还必须达到以下指标要求：如果您未达到这些要求，您的商品可能无法使用“次日达”服务。

次日按时送达

对于选择“次日达”选项的订单，其中至少有 95% 的订单能在预计送达日期 (EDD) 当天或之前送达。

对于选择“次日达”选项的订单，预计送达日期将显示为下单日期之后的 1-2 个工作日，与您指定的处理时间无关。对于您在周一至周五下午 1:00 之前收到的订单，预计送达日期将显示为下单日期之后的 1 个工作日。对于您在工作日下午 1:00 之后以及周末和假日收到的订单，预计送达日期将显示为下单日期之后的 2 个工作日。

次日准时配送

对于选择“次日达”选项的订单，其中至少有 99% 的订单能在预计配送时间当天或之前配送。

对于选择“次日达”选项的订单，预计配送时间将显示为下单日期之后的 1-2 个工作日，与您指定的处理时间无关。对于您在周一至周五下午 2:00 之前收到的订单，预计配送时间将显示为下单日期。对于您在工作日下午 2:00 之后以及周末和假日收到的订单，预计配送时间将显示为下单日期之后的 1 个工作日。

追踪

使用可追踪的配送方法并提供有效的追踪编码，且优先配送订单（当日达、次日送和隔日送订单）的追踪率最少为 94%。亚马逊会根据您在最近 30 天内的表现评估您是否有资格提供优先配送选项。至少要有一条承运人扫描记录，追踪编码才会被视为有效。

承运人要求

使用 UPS、FedEx、美国邮政 (USPS) 或 OnTrac 配送利用“次日达”所下的订单。

优先配送绩效标准

保持以下标准：

取消率：

低于 1.5%

订单数量：

最近 30 天内所有配送选项的订单数量不低于 10 单。

您可以在客户满意度页面的优先配送资格工具中查看符合“次日达”资格的绩效指标。此工具会显示您是否有资格提供“次日达”服务以及您的绩效指标。如果您具备资格并希望提供“次日达”服务，请前往配送设置，然后激活配送模板中的次日达。

如果您的绩效指标低于最低标准，但您在提高指标后达到这些要求，那么您在优先配送资格工具中的状态将会更改为“合格”。您将可以重新为您的商品提供“次日达”配送选项。有关更多信息，请参阅次日达“不合格”状态。

 亚马逊官网原文详情：

Qualify for One-Day Delivery

To qualify for One-Day Delivery, you must have sold on Amazon for at least the last 90 days.

Additionally, customers expect quick package delivery, so you must also maintain the requirements for the following metrics. If you don't meet these requirements, One-Day Delivery may be disabled on your offers.

One-Day on-time delivery

Deliver at least 95% of One-Day Delivery orders on or before the Estimated Delivery Date (EDD).

One-Day Delivery will show an EDD that is one or two business days after the date of order, regardless of your specified handling time. Orders that you receive Monday-Friday before 1:00 p.m., will show an EDD that is one business day after the order date. Orders that you receive after 1:00 p.m. on a business day, or on a weekend or holiday, will show an EDD that is two business days after the date of order.

Note: If the delivery carrier attempts but fails to deliver a package, it counts as being delivered for the purposes of this requirement.

One-Day on-time shipment

Ship at least 99% of One-Day Delivery orders on or before Expected Ship Date.

One-Day Delivery will show an Expected Ship Date that is one or two business days after the date of order, regardless of your specified handling time. Orders that you receive Monday-Friday before 2:00 p.m., will show an Expected Ship Date that is the order date. Orders that you receive after 2:00 p.m. on a business day, or on a weekend or holiday, will show an Expected Ship Date that is one business day after the date of order.

Tracking

Use a trackable shipping method and provide valid tracking IDs with a minimum of a 94% tracking rate on Premium Ship Orders (Same-Day, One-Day and Two-Day Delivery Orders). Amazon assesses eligibility to offer Premium Shipping options based on the past 30 days. Tracking numbers are only considered valid if they have at least one carrier scan recorded.

Carrier requirements

Use UPS, FedEx, United States Postal Service (USPS), or OnTrac to deliver orders placed with One-Day Delivery.

Premium Shipping Performance standards

Maintain the following standards:

Cancellation rate:

Less than 1.5%

Order count:

Ten or more in the trailing 30 days across all shipping options.

You can view performance metrics specific to your One-Day Delivery eligibility on the Customer Satisfaction page in the Premium Shipping Eligibility tool. This tool shows your eligibility status to offer One-Day Delivery and your performance metrics. If you are eligible and would like to offer One-Day Delivery, go to Shipping Settings, and then activate One-Day Delivery on a shipping template.

Note: If your performance standards are currently below the minimum thresholds, One-Day Shipping will not display as an option for your offers.

If your performance metrics are below the minimum and you improve them to meet the requirements, your status will change to "Eligible" in the Premium Shipping Eligibility tool. One-Day Delivery will once again be a shipping option for your offers. For more information, see One-Day Delivery "Not eligible" status.

 文章来源：亚马逊官方网站