二级仓库以前叫做 Wish Express 仓库。但是，更名之后，wish商户平台增加了“最长妥投天数”功能，允许商户为其主仓库和/或二级仓库中的产品设置最长妥投天数，从而扩大了二级仓库覆盖的产品范围。
根据商户设置的“最长妥投天数”，某些产品或可享受 Wish Express 权益。
此外，商户现在可从新创建的二级仓库配送至 Wish 支持的所有目的国/地区。因此，只要商户为任何目的国/地区设置的“最长妥投天数”不超过5个工作日（商户政策10.2中列出的12个国家/地区除外），相关产品都将被视为 Wish Express 产品，并享受 Wish Express 权益（这是一项重大利好，因为之前 Wish Express 仅支持指定的目的国/地区）。
如果商户没有按每个产品的每个目的国/地区手动设置“最长妥投天数”，Wish 向用户显示的妥投天数将默认为5个工作日（商户政策10.2中列出的12个目的国/地区除外），这些产品也将有资格享受 Wish Express 权益。
对于中国大陆的商户，请参阅此文了解更多详情。
对于中国大陆以外的商户，请参阅此文了解更多详情。
wish商户官网原文详情：
2. What is the relationship between Wish Express and Primary/Secondary Warehouses?
Secondary warehouses were previously called Wish Express warehouses. However, after the naming update, we have expanded the capacity of Secondary warehouses by incorporating max delivery days that merchants can set for their products in Primary and/or Secondary warehouses.
Depending on the max delivery days set by merchants, products may be eligible for Wish Express benefits.
In addition, merchants can now ship from their newly-created Secondary warehouses to all destinations supported by Wish. As such, as long as merchants set the “max delivery days” for any destinations as 5 or fewer business days (with the exception of the 12 countries listed in Merchant Policy 10.2), related products will be considered Wish Express products and receive Wish Express benefits (this is a significantly beneficial change from the previous setup where only select destination countries are eligible for Wish Express).
If merchants do not manually set the “max delivery days” per product per destination, Wish will default the delivery days shown to customers as 5 business days (with the exceptions for 12 destination countries listed in Merchant Policy 10.2), and the product will be eligible to receive Wish Express benefits as well.
For merchants based in Mainland China, please visit this article for more details.
For merchants based outside of Mainland China, please visit this article for more details.
文章内容来源：wish商户官方网站
