查看第三方功能
要开展大型限时抢购活动，您需要确保第三方集成能够处理您商店的流量增加。
应用
如果您在结账流程中使用第三方应用，则您应该与开发人员联系，告知他们您的预计订单量和促销活动持续时间。他们可以提供其应用可处理的流量大小的相关信息。如果他们不确定应用能够支持您预计的结账量，则请考虑在促销期间禁用此应用。
发货应用
在访问量极高的活动期间，发货应用通常会出现性能较差的情况。由于未提供运费将导致无法完成结账，请考虑在促销期间禁用发货应用和承运商计算的运费，改为直接在 Shopify 后台中设置自定义固定费率。例如，如果您的 Shopify 后台中安装了向客户提供计算的运费的发货应用，则应考虑禁用该应用，并改用自己的自定义固定费率。通过使用您自己的自定义固定费率，您的客户无需等待计算运费即可完成结账。
备注：如果您使用 Shopify Shipping，请确保您已禁用自己的承运商账户，并改为使用 Shopify 的承运商账户。
自定义应用
如果您的商店中安装了自定义应用，则应检查这些应用，以确保它们尽可能高效，并且 API 调用率已足够。如果您不确定应用是否可以处理您预期的访问量，请考虑在活动期间将其禁用。有关详细信息，请参阅关于最大限度利用 Shopify API 的指南。
支付服务提供商
如果您未使用 Shopify Payments，请联系您的支付服务提供商以确保他们能支持您的预计销售量。请考虑设置另一个支付服务提供商，以防您的主要提供商无法处理您的订单量。请务必事先测试您的供应商，以确保客户在结账时不会遇到任何问题。
外部支付服务提供商
外部支付服务提供商是一种可将客户定向到 Shopify 外部完成付款的服务，包括允许稍后付款或部分付款的支付选项。由于将结账信息传输到第三方服务再传回已完成付款信息需要一定时间，这些支付选项可能导致商品超卖。如果您提供类似的支付选项，请考虑在促销期间禁用它们。
相关链接
在线商店的密码保护
模板教程
第三方支付服务提供商
创建一个测试订单
Shopify商户官网原文详情：
Review third-party functions
For large flash sales, you need to make sure that your third-party integrations can handle the increase in traffic to your store.
Apps
If you have third-party apps as part of your checkout process, then you should contact the developers with an estimate of the volume of orders you expect and the duration of your sale. They can provide information on what their app can handle. If they're not confident that the app can support the amount of checkouts that you expect, then consider disabling the app for the duration of your sale.
Shipping apps
Shipping apps typically display poor performance during extremely high volume events. Because a checkout can't be completed if shipping rates aren't provided, consider disabling shipping apps and carrier-calculated rates for the duration of your sale. Instead, set up custom flat rates directly in your Shopify admin. For example, if you have a shipping app installed in your Shopify admin that provides calculated shipping rates to your customers, then you should consider disabling the app, and use your own custom flat rates instead. Using your own custom flat rates lets your customers complete the checkout without needing to wait for shipping rates to be calculated.
Custom apps
If you have custom apps installed in your store, then you should review them to make sure that they are as efficient as possible and that the API call rate is sufficient. If you aren't sure that an app can handle the volume you're expecting, then consider disabling it for the duration of your event. Refer to our guide on maximizing your use of the Shopify API to learn more.
Payment providers
If you don't use Shopify Payments, then contact your payment provider to ensure they can support the volume of sales you expect. Consider setting up a second payment provider in case your primary provider isn't able to keep pace with your orders. Make sure to test your providers beforehand to ensure there aren't any problems for your customers at checkout.
External payment providers
An external payment provider is a service that directs customers to complete their payment outside of Shopify, and includes payment options that allow paying later or partial payments. These payment options can result in overselling of merchandise, because of the time needed to transmit the checkout to a third-party service and back again with completed payment information. If you offer a payment option like this, then consider disabling it for the duration of your sale.
Related links
Password protection for your online store
Theme tutorials
Third-party payment providers
Placing a test order
文章内容来源：Shopify商户官方网站
