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wiki/concepts/CrossPlatformPlanning.md
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wiki/concepts/CrossPlatformPlanning.md
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title: "Cross-Platform Planning"
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type: concept
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tags: ["ppc", "multi-platform", "strategy", "google-ads", "amazon-ads", "paid-media"]
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sources: ["paid-media-ppc-strategist"]
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last_updated: 2026-05-01
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---
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## Definition
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跨平台规划(Cross-Platform Planning)是付费媒体策略中在 Google Ads、Microsoft Advertising、Amazon Ads 等多个广告平台之间协调预算分配、策略制定和效果衡量的系统性方法。核心理念:**避免平台间预算相互蚕食(cannibalization)**,通过统一的测量框架实现整体效率最优。
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## Three Major Platforms Compared
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| 维度 | Google Ads | Microsoft Advertising | Amazon Ads |
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|------|-----------|----------------------|-----------|
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| **用户意图** | 信息获取 → 购买 | 信息获取 → 购买(B2B更强) | 购买意图最强 |
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| **广告类型** | Search/Shop/PMax/Display/Video | Search/Shop/Audience | SP/SB/SD/DSP |
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| **量级** | 最大 | 较小但增长 | 电商专属 |
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| **CPC 水平** | 中高 | 较低 | 中等 |
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| **竞争密度** | 高 | 中低 | 中 |
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| **数据透明度** | 高 | 中 | 中 |
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## Budget Split Frameworks
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### Intent-Based Allocation
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```
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基于用户意图漏斗分配:
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- 品牌词:Google Brand(高保护)+ Amazon Brand(购买保护)
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- 竞品词:Google(截流)+ Microsoft(Bing 独家流量)
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- 产品词:Google + Amazon(不同意图阶段)
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- 漏斗上层:Google Display/Video + YouTube
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```
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### Platform-Specific Feature Exploitation
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- **Google**:Smart Bidding + Performance Max + Broad Match + AI
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- **Microsoft**:LinkedIn 受众定向(B2B)+ 更低 CPC + Google 迁移便利
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- **Amazon**:购买意图流量 + DSP + AMC 受众分析
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## Unified Measurement Approach
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### Attribution Challenges
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- **Last-click 归因偏差**:Amazon 通常在漏斗底部,导致 Google Display 贡献被低估
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- **Cross-device**:用户可能在手机研究、PC 搜索、线下购买
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- **Platform silos**:各平台独立追踪,缺乏统一视图
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### Measurement Solutions
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- **Google Analytics 4(GA4)**:跨平台归因(需 UTM + 各平台 API 集成)
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- **Amazon AMC(Amazon Marketing Cloud)**:亚马逊生态内的跨触点归因
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- **Incrementality Testing**:衡量各平台真实增量贡献
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- **Data-Driven Attribution**:ML-based 归因模型
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## Cannibalization Prevention
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| 症状 | 原因 | 解决方案 |
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|------|------|---------|
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| 跨平台 ROAS 均下降 | 关键词重叠,内部竞争 | 差异化关键词策略 |
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| 总转化量不变但成本上升 | 多平台分摊自然流量 | Incrementality 测试验证 |
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| 品牌词跨平台 CPC 上升 | 内部竞标 | 统一品牌词竞价策略 |
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## Connections
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- [[GoogleAds]]:跨平台策略的核心平台之一
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- [[MicrosoftAdvertising]]:Google 之外的搜索广告补充
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- [[AmazonAds]]:购买意图漏斗底部的专属平台
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- [[IncrementalityTesting]]:衡量跨平台真实增量贡献
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- [[BudgetPacing]]:跨平台预算分配是 pacing 的高级形式
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