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Send weekly Google Ads performance reports with GPT-5.1 and Gmail

Sona LabsSona Labs
44 views
2/3/2026
AirtableShopifyE-commerceData SyncOrder Management
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Automatically analyzes your Google Ads performance every Monday and sends a comprehensive report to your inbox with AI-powered insights, week-over-week comparisons, and prioritized recommendations to optimize your campaigns.

How it works

Step 1: Schedule Weekly Analysis

  • Triggers automatically every Monday at midnight
  • Can be customized to your preferred schedule
  • Initiates the entire data collection and analysis process

Step 2: Collect Performance Data

  • Fetches last 7 days of Google Ads data via API
  • Retrieves previous 7 days of data (days 8-14) for comparison
  • Extracts key metrics including impressions, clicks, cost, conversions, CTR, and CPA
  • Calculates and summarizes performance for each week
  • Identifies top performers, problem campaigns, and efficiency trends
  • Merges data to create comprehensive week-over-week comparison

Step 3: AI-Powered Analysis

  • Aggregates all performance data into a single view
  • Sends data to AI Analyst powered by GPT-5.1
  • AI analyzes trends, identifies insights, and spots anomalies
  • Diagnoses root causes of performance changes
  • Generates actionable, prioritized recommendations based on business impact
  • Calculates efficiency metrics and budget optimization opportunities

Step 4: Deliver Insights Report

  • Formats analysis into a professional HTML report
  • Emails comprehensive insights directly to your inbox
  • Includes executive summary, week-over-week comparison tables, and color-coded metrics
  • Provides high/medium/low priority action items
  • Ready for immediate action and strategy adjustments

What you'll get

The workflow delivers a comprehensive weekly analysis with:

  • Performance Metrics: Impressions, clicks, CTR, conversions, cost, CPA, and efficiency trends
  • Week-over-Week Comparison: Side-by-side analysis with percentage changes and visual indicators
  • Top Performers Analysis: Detailed breakdown of your best-performing campaigns
  • Issues & Performance Risks: Identification of campaigns with high spend but zero conversions, declining CTR, or rising CPA
  • AI-Generated Insights: Intelligent pattern recognition and trend analysis with root cause diagnosis
  • Actionable Recommendations: Prioritized action items (high/medium/low) with expected impact and risk levels
  • Budget Efficiency Analysis: Spend allocation recommendations and wasted spend identification
  • Campaign Intelligence: Clear understanding of what's working and what needs attention
  • Data Confidence Assessment: Commentary on sample size adequacy and metric reliability
  • Automated Delivery: Weekly HTML report sent directly to your email without manual effort

Why use this

  • Save time on reporting: Eliminate 2-3 hours of manual weekly analysis and report creation
  • Never miss insights: AI catches trends and patterns humans might overlook
  • Consistent monitoring: Automated weekly reviews ensure you stay on top of performance
  • Data-driven decisions: Make strategic adjustments based on comprehensive analysis with clear priorities
  • Early problem detection: Spot performance issues and wasted spend before they impact your budget
  • Optimize continuously: Regular insights enable ongoing campaign refinement
  • Focus on strategy: Spend less time analyzing data, more time implementing improvements
  • Scalable intelligence: Works whether you manage 1 campaign or 100
  • Executive-ready reports: Professional HTML format suitable for sharing with stakeholders

Setup instructions

Before you start, you'll need:

  1. Google Ads Account & API Access

    • Go to your Google Ads account at https://ads.google.com
    • Find your Customer ID (XXX-XXX-XXXX format in top-right corner)
    • Get a Developer Token from Google Ads API Center
    • Enable API access for your account

  2. OpenAI API Key (for GPT-5.1 AI analysis)

  3. Gmail Account (for receiving reports)

    • OAuth2 authentication will be used
    • No app password needed

Configuration steps:

  1. Replace Google Ads Customer ID:

    • Open both "Get Last Week Data" and "Get Previous Week Data" HTTP Request nodes
    • In the URL field, replace [Customer ID] with your actual Customer ID (format: XXX-XXX-XXXX)

  2. Add Developer Token:

    • In both HTTP Request nodes, add your Google Ads Developer Token to the header parameters

  3. Connect Google Ads OAuth2:

    • In both HTTP Request nodes, authenticate with your Google Ads credentials
    • Select your ad account

  4. Connect OpenAI credentials:

    • In the "OpenAI Chat Model" node, add your OpenAI API key
    • Verify GPT-5.1 model is selected

  5. Configure email delivery:

    • In the "Email Report to User" node, connect your Gmail OAuth2 credentials
    • Update the recipient email address (default: lee@sonalabs.com)
    • Customize subject line if desired

  6. Set your schedule (optional):

    • In the "Weekly Trigger" node, configure your preferred day and time
    • Default is Monday at midnight

  7. Test the workflow:

    • Click "Execute Workflow" to run manually
    • Verify data pulls correctly from Google Ads
    • Check that AI analysis provides meaningful insights
    • Confirm email report arrives formatted correctly

  8. Customize analysis focus (optional):

    • Open the "AI Analyst" node
    • Adjust the prompt to prioritize specific metrics or goals for your business
    • Modify thresholds for "problem campaigns" in the calculation nodes

  9. Activate automation:

    • Enable the workflow to run automatically every Monday
    • Monitor the first few reports to ensure accuracy

Note: The workflow analyzes the last 7 days vs. the previous 7 days, giving you rolling two-week comparisons every Monday. Adjust the date ranges in the HTTP Request nodes if you need different time periods.

Send Weekly Google Ads Performance Reports with GPT-5.1 and Gmail

This n8n workflow automates the generation and delivery of weekly Google Ads performance reports. It leverages an AI agent to analyze ad performance data and summarize it into a concise, human-readable email, which is then sent via Gmail.

What it does

This workflow streamlines the process of communicating Google Ads performance by:

  1. Triggering Weekly: The workflow is scheduled to run automatically on a recurring basis (e.g., weekly).
  2. Fetching Google Ads Data: It makes an HTTP request to retrieve Google Ads performance data.
  3. Preparing Data for AI: The raw data is processed and aggregated to be suitable for AI analysis.
  4. AI Analysis and Summary: An AI agent, powered by an OpenAI Chat Model and equipped with a Calculator tool, analyzes the Google Ads data. It then generates a summary of the performance.
  5. Email Generation: The AI-generated summary is used to compose a professional and informative email.
  6. Sending Email via Gmail: The prepared email, containing the performance report, is sent to the specified recipients using Gmail.

Prerequisites/Requirements

To use this workflow, you will need:

  • n8n Instance: A running n8n instance.
  • Google Ads API Access: Credentials and access to the Google Ads API to fetch performance data via an HTTP Request.
  • OpenAI API Key: An API key for OpenAI to power the AI Agent and Chat Model.
  • Gmail Account: A configured Gmail credential in n8n to send emails.

Setup/Usage

  1. Import the Workflow:
    • Copy the provided JSON code.
    • In your n8n instance, go to "Workflows" and click "New".
    • Click the three dots in the top right corner, select "Import from JSON", and paste the workflow JSON.
  2. Configure Credentials:
    • HTTP Request (Google Ads): Update the "HTTP Request" node (Node ID: 19) with your Google Ads API endpoint, authentication details, and any necessary query parameters to fetch your performance data.
    • OpenAI Chat Model: Configure the "OpenAI Chat Model" node (Node ID: 1153) with your OpenAI API Key.
    • Gmail: Set up a Gmail credential in n8n and select it in the "Gmail" node (Node ID: 356).
  3. Customize AI Agent:
    • AI Agent: Review the "AI Agent" node (Node ID: 1119). You may need to adjust the prompt or instructions to guide the AI in summarizing the Google Ads data according to your specific reporting needs.
    • Calculator: The "Calculator" tool (Node ID: 1195) is available for the AI agent to perform calculations if needed during its analysis.
  4. Configure Schedule Trigger:
    • Adjust the "Schedule Trigger" node (Node ID: 839) to your desired frequency (e.g., weekly on a specific day and time).
  5. Customize Email Content:
    • In the "Gmail" node (Node ID: 356), customize the email's recipient(s), subject, and body. Ensure it correctly references the output from the AI Agent for the performance summary.
  6. Activate the Workflow:
    • Once configured, activate the workflow to start sending automated weekly Google Ads performance reports.

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