GPT-4の洞察とPDF.coを使用してGoogle Sheetsからマーケティングレポートを生成

• •Google Sheets API認証情報
• •OpenAI API Key

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        "content": "# 📊 Marketing Spend Report → Google Sheets + PDF\n\nThis workflow pulls **marketing data from Google Sheets**, aggregates spend by channel, generates an **AI-written summary**, and outputs a formatted **PDF report** using a custom HTML template on **PDF.co**.  \n\n"
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        "content": "\n## ⚙️ Setup Instructions\n\n### 1️⃣ Prepare Your Google Sheet  \n- Copy this template into your Google Drive: [Sample Marketing Data](https://docs.google.com/spreadsheets/d/1UDWt0-Z9fHqwnSNfU3vvhSoYCFG6EG3E-ZewJC_CLq4/edit?gid=365710158#gid=365710158)  \n- Add or update your marketing spend data in rows 2–100.  \n\n#### Connect Google Sheets in n8n  \n1. Go to **n8n → Credentials → New → Google Sheets (OAuth2)**  \n2. Log in with your Google account and grant access  \n3. Select the **Spreadsheet ID** and **Worksheet** in the workflow  \n\n---\n\n### 2️⃣ Set Up PDF.co for PDF Reports  \n1. Create a free account at [PDF.co](https://pdf.co/)  \n2. In **PDF.co Dashboard → HTML to PDF Templates**, create a new **Mustache template**  \n   - Paste the HTML provided at the bottom of this description  \n   - Save, and note your **Template ID**  \n3. In **n8n → Credentials → New → PDF.co API**, paste your **API Key** and save  \n4. In the workflow, select your **PDF.co credential** in the `Create PDF` node  \n5. Replace the `templateId` with your Template ID  \n\n\n\n## 📬 Contact  \nNeed help customizing this (e.g., filtering by campaign, sending reports by email, or formatting your PDF)?  \n\n- 📧 **robert@ynteractive.com**  \n- 🔗 **[Robert Breen](https://www.linkedin.com/in/robert-breen-29429625/)**  \n- 🌐 **[ynteractive.com](https://ynteractive.com)**  \n\n\n"
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        "jsCode": "// n8n Code node (JavaScript)\n// Input: ONE item whose .json is the array you posted\n// Output: ONE item in correct n8n shape: [{ json: <object for HTML/Mustache> }]\n\nconst fmtUSD = (n) => Number(n || 0).toLocaleString('en-US', { style: 'currency', currency: 'USD' });\n\nconst items = $input.all();\nif (!items.length) {\n  return [{ json: { error: 'No input data' } }];\n}\n\n// Handle your exact incoming shape (array with one object)\nlet root = items[0].json;\nif (Array.isArray(root)) root = root[0] || {};\n\nconst totalSpendRaw = Number(root[\"sum_Spend_($)\"] || 0);\nconst channelsRaw = Array.isArray(root.data) ? root.data : [];\nconst summary = (typeof root.output?.summary === 'string') ? root.output.summary : '';\n\n// Build channels list for the HTML template\nconst channels = channelsRaw.map(r => ({\n  channel: r.Channel || 'Unknown',\n  spendFmt: fmtUSD(Number(r[\"sum_Spend_($)\"] || 0)),\n}));\n\n// Final object expected by your HTML/Mustache\nconst out = {\n  generatedDate: new Date().toISOString().slice(0, 10),\n  totalSpendFmt: fmtUSD(totalSpendRaw),\n  channelCount: channels.length,\n  channels,\n  summary,\n};\n\n// ✅ Return in proper n8n format\nreturn [{ json: out }];\n"
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        "content": "### 2️⃣ Connect PDF.co\n1. Create a free account at [PDF.co](https://pdf.co/)  \n2. Copy your **API Key** from the dashboard  \n3. In **n8n → Credentials → New → PDF.co API**  \n   - Paste your API Key → **Save**  \n4. In the **PDF.co node**, select your credential and choose the **HTML Template to PDF** operation  \n\n---\n\n### 3️⃣ Create Your PDF.co HTML Template\n1. In your [PDF.co dashboard](https://app.pdf.co/), go to **Templates → New Template**  \n2. Paste in the HTML from the template section below  \n3. Save the template and copy its **Template ID**  \n4. Replace the `templateId` in the workflow with your new ID  \n\n---\n"
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        "content": "### 1️⃣ Prepare Your Google Sheet  \n- Copy this template into your Google Drive: [Sample Marketing Data](https://docs.google.com/spreadsheets/d/1UDWt0-Z9fHqwnSNfU3vvhSoYCFG6EG3E-ZewJC_CLq4/edit?gid=365710158#gid=365710158)  \n- Add or update your marketing spend data in rows 2–100.  \n\n#### Connect Google Sheets in n8n  \n1. Go to **n8n → Credentials → New → Google Sheets (OAuth2)**  \n2. Log in with your Google account and grant access  \n3. Select the **Spreadsheet ID** and **Worksheet** in the workflow  \n"
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