> 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/cross-channel-performance-insights/optimize-reports/incrementality-faq.md).

# 增量常见问题

增量性通过显示如果没有该合作伙伴，本不会发生哪些转化，从而衡量每个合作伙伴带来的真实价值。这有助于确保你不会砍掉那些实际上正在推动增量销售的合作关系。增量性用于 [增量性仪表板](/brand/zh/what-would-you-like-to-learn-about/platform-features/cross-channel-performance-insights/optimize-reports/incrementality-dashboard-explained.md) 和 [按合作伙伴划分的增量性报告](/brand/zh/what-would-you-like-to-learn-about/platform-features/cross-channel-performance-insights/optimize-reports/incrementality-by-partner-report.md).

<details>

<summary>增量性仪表板回答哪些问题？</summary>

该 [增量性仪表板](/brand/zh/what-would-you-like-to-learn-about/platform-features/cross-channel-performance-insights/optimize-reports/incrementality-dashboard-explained.md) 提供可帮助回答以下问题的洞察：

* 每个合作伙伴贡献了多少增量价值？
* 如果我移除一个合作伙伴，我会损失多少收入？
* 我是否在向某些合作伙伴支付过少或过多？

</details>

<details>

<summary>增量性百分比是什么意思？</summary>

*增量性百分比* 显示合作伙伴的行为或收入中，推动真实额外价值的占比。

* *高增量性百分比* = 合作伙伴正在推动真实额外价值（例如，许多独立、介绍或成交触点）。
* *公式*：来自模型的总分数信用 ÷ 合作伙伴参与的总订单数。

</details>

<details>

<summary>增量性百分比是如何计算的？</summary>

该计算使用 *U型时间衰减归因模型* ，它会对所有触点而不仅仅是最后一次点击进行归因。首次和最后一次互动被视为最重要，因此会比中间的互动获得更高权重。

该计算的 *7天时间衰减模型* 意味着越接近转化的互动获得的归因越多。例如，转化前1天的互动，其权重是转化前8天的互动的两倍。转化路径中的第一步和最后一步也会获得额外权重。

该模型确保帮助开启或促成旅程，或在接近转化时发挥作用的合作伙伴，获得更高权重。

<div data-with-frame="true"><figure><img src="https://1186853034-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FwMLlMoFBtKJa8ptd3zaw%2Fuploads%2Fgit-blob-9af6fb235157bea0ce6081fb70c3fa9cc335a310%2Fd0d7c21c745477cc190574990a5d46ad774c4b4f43bb6eebc875c524a6dc0827.png?alt=media" alt=""><figcaption></figcaption></figure></div>

</details>

<details>

<summary>什么是调整后 CPA 和调整后 ROAS？</summary>

*调整后 CPA/ROAS* 通过仅显示增量行为或收入的成本和回报，将增量性纳入考量。这些指标可帮助你设定公平的绩效目标：

* 调整后 CPA = 在仍能获得价值的情况下，你可以支付的最低每次行动成本。
* 调整后 ROAS = 你可以从增量价值中预期获得的最高广告支出回报。

</details>

<details>

<summary>为什么调整后 ROAS/CPA 可能与标准 ROAS/CPA 不同？</summary>

在最后点击模型下，如果另一个渠道“抢先”一步，合作伙伴可能无法获得其贡献的归因。增量性报告会更公平地分配归因，通常会显示某个合作伙伴带来的价值比原先认可的更多。

</details>

<details>

<summary>我该如何利用这些洞察来做决策？</summary>

* 识别哪些合作伙伴正在推动真正的增量销售。
* 比较标准与调整后的 CPA/ROAS，看看你是否支付过少或过多。
* 利用这些洞察决定是优化、重新谈判，还是扩大合作关系。

</details>


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