wish产品规范：MSRP（参考价格）
MSRP（制造商建议零售价）是一种参考价格。参考价格（以及产品的所有其他信息）必须真实且不具有误导性。MSRP 部分并非必填项。但如果商户选择在此项填入数值，则该数值必须符合“产品参考价格政策”。提供参考价格并非强制要求，商户可自行选择是否提供。Wish 将告知用户如下信息：
(i) MSRP 中提供的参考价格由商户提供；
(ii) 参考价格应符合“产品参考价格政策”；
(iii) 用户可以举报看起来不符合“产品参考价格政策”的参考价格。
“产品参考价格政策”规定，商户可以：
使用同时符合以下三点的价格作为参考价格：
(i) 商户近期使用过此价格；
(ii) 商户在一段合理的时间内持续使用此价格；
(iii) 商户曾以此价格售出过相应产品。
使用 MSRP 或制造商提供的标价作为参考价格。
证明 — 所有商户均有责任为其产品（包括产品价格）的相关信息提供合理的依据。通常这意味着，对于您使用的任何参考价格，您都可以提供相关的证据。我们推荐使用的证据包括曾使用某参考价格的证据（即产品报价或标价），以及曾按参考价格销售产品的证据。如果用户就商户在 MSRP 部分提供的参考价格的真实性或准确性提出投诉，则商户可能需要提供相关证据进行证明。
示例：
1) 商户 A 上架某个产品，并在 MSRP 部分提供了参考价格。但是，商户 A 从未以该 MSRP 作为标价并售出过该产品。那么，商户 A 不应使用该 MSRP 作为参考价格，因为其没有合理的依据（即其没有证据可证明该 MSRP 曾是标价或售价）。
2) 商户 B 在过去 3 个月将某件产品标价为 x 价格并成功售出。商户 B 为该产品找到了新的供应商，因此降低了成本。商户 B 选择将节省的成本惠及用户，因此将该产品的标价降价到 y。商户 B 可以使用旧价格（x）作为新价格（y）的参考价格，因为旧价格符合以下条件：(i) 最近曾使用过；(ii) 已使用了一段合理时间；(iii) 以该价格售出过相应产品。商户 B 应保留以 x 价格售出产品的证据。
3) 上例中的商户 B 在改价8个月后想要继续使用旧价格（x）作为新价格（y）的参考价格。在此情况下，商户 B 不可以使用价格 x 作为参考价，因为此时价格 x 已经是8个月前的价格。
4) 商户 C 收到制造商供应的产品，以及标注制造商建议零售价 X 的相关文件。那么，商户 C 可以在合理的一段时间内使用 X 作为参考价格，因为这是制造商提供的具有证明文件的价格。
The laws and rules for reference prices may differ from one country to another, but the UK’s Ad Standards Authority has a helpful guide.
wish商户官网原文详情：
MSRP - Reference Prices
The Manufacturer’s Suggested Retail Price, a type of Reference Price, (and all other aspects of a listing) must be truthful and not misleading. Merchants are not required to provide a value for the MSRP Field. If Merchants choose to provide a value for the MSRP Field (a “Reference Price”), each Reference Price must comply with the Product Reference Price Policy. Use of a Reference Price in a listing is not required, but can be done at the merchant’s option. Wish users will be advised that: (i) the Reference Price in the MSRP field is provided by the merchant; (ii) the Reference Price should comply with the Product Reference Price Policy; and (iii) to report Reference Prices that do not appear to comply with the Product Reference Price Policy.
The Product Reference Price Policy allows the following:
Use of a Reference Price for an identical item if the price: (i) was recently used by the merchant; (ii) was used for a reasonable length of time; and (iii) merchant made sales at that price .
Use of Reference Price that is an MSRP or List Price that was generated by the manufacturer.
Substantiation – Each merchant is responsible for having a reasonable basis for making claims about a product, including about its price. This generally means that you should have evidence of any Reference Price posted. We recommend evidence of use of a price (i.e. offers or listings) as well as evidence of sales at the Reference Price. If a complaint about the truth or accuracy of a Reference Price in the MSRP field arises, the merchant that posted it may be required to present evidence supporting the Reference Price.
Examples:
1) Merchant A lists an item with an MSRP. However, merchant A has never listed or sold the item at the MSRP. Merchant A should not use the MSRP as a Reference Price, because there is no reasonable basis for making this claim (e.g. no evidence that the MSRP was ever the list or sale price).
2) Merchant B listed and sold an item for price x for the last 3 months. Merchant B finds a new supplier for the same item and lowers his costs. Merchant B chooses to pass the savings on to customers and lists the item at a new, lower price of y. Merchant B may compare the new price (y) with the old price (x) because the old price was: recently used; for a reasonable length of time; and sales were made at that price. Merchant B should retain evidence of sales at price x.
3) Merchant B from the example above would like to continue comparing the new price (y) with the price (x) 8 months after Merchant B changed the price. Merchant B should not use price x as a comparison because it is now 8 months old.
4) Merchant C receives a supply of product from the manufacturer, including documents showing the manufacturer’s suggested retail price of X. Merchant C may use X as a Reference Price for a reasonable period of time, because it is a documented price from the manufacturer.
The laws and rules for reference prices may differ from one country to another, but the UK’s Ad Standards Authority has a helpful guide.
文章内容来源：wish商户官方网站
