> For the complete documentation index, see [llms.txt](https://help.impact.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.impact.com/brand/zh/what-would-you-like-to-learn-about/platform-features/tracking/credit-policies/first-click-credit-policy-explained.md).
# 首次点击归因政策说明
如果 Last Click 将所有归因和佣金都给了转化路径中的最后一个合作伙伴，以推动一次点击，那么 First Click 则将其给到路径中第一个推动点击的合作伙伴。合作伙伴通常认为这种方式不那么受欢迎，一般不建议采用。
采用 First Click 归因政策时，在转化路径中带来首次点击的合作伙伴将获得100%的归因，通常也会获得该转化的全部佣金。不过，获得全部归因可能取决于您的 [参与奖金](/brand/zh/what-would-you-like-to-learn-about/platform-features/contracts-and-template-terms/template-terms/payout-adjustments/participation-bonuses-explained.md) 设置。
{% hint style="info" %}
**兼容性说明：** 不同于 [Last to Cart](/brand/zh/what-would-you-like-to-learn-about/platform-features/tracking/credit-policies/last-to-cart-credit-policy-explained.md)，First Click 不需要手动 [Universal Tracking Tag (UTT)](/brand/zh/what-would-you-like-to-learn-about/platform-features/tracking/javascript-tag-tracking/tracking-with-universal-tracking-tag-utt.md) `trackCart` 实施。如果您使用应用或插件集成，包括 Shopify、WooCommerce 或 BigCommerce，请使用不需要 `trackCart`.
{% endhint %}
First Click 政策与其他政策的一个重大区别是需要设置回溯窗口。该窗口设定 impact.com 应向前追溯多长时间，以寻找转化路径中的首次点击。由于转化路径会在 [行动锁定窗口](/brand/zh/what-would-you-like-to-learn-about/platform-features/actions-and-payouts/understand-the-action-life-cycle-and-finance.md) 开始时提交（即当某个转化，例如销售，被跟踪时），回溯窗口决定了 impact.com 应向前追溯多久去查找引入该转化的合作伙伴。
例如，若回溯窗口设为90天，则只会从转化发生时向前追溯90天。该窗口内带来最早点击的合作伙伴将赢得该转化的归因，即使真实的转化路径耗时超过90天也是如此。
示例场景
例如，我们来看 Duff Inc. 的业务。他们出于几个不同原因决定升级到 Professional 版本，并且特别希望将归因逻辑切换为 First Click 归因政策。
Duff Inc. 决定将回溯窗口设为45天，因为他们在使用 Last Click 时，所有转化路径都需要这么长时间才能完成转化。他们还决定将 First Click 政策优先于 Last Click。最后，所有合作伙伴都将按照 First Click 归因政策获得归因。
不过，不知为何，他们的转化路径看起来和使用 Last Click 时完全一样。客户总是先通过商品博客的横幅广告添加眼镜，在点击赞助搜索结果后添加品牌商品，然后在点击赞助 Instagram 帖子后完成购买。然而，自从切换之后，商品博客因为在转化路径中带来了第一次点击，赢得了所有转化。
#### 我该如何申请此归因政策？
联系你的 CSM（或 [请联系支持团队](https://app.impact.com/support/portal.ihtml?createTicket=true)）讨论启用 First Click 归因政策。你需要说明为什么想使用此政策、如果所有合作伙伴都采用 First Click（如果不是，那么当存在多个政策时，在一次旅程中应优先采用哪种政策），以及你是否考虑过回溯窗口。
---
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