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Debugging and Workflow Optimization

Jun 12, 2025

Summary

  • The session focused on debugging, improving, and extending a Google Maps scraping and automated email outreach workflow, with live problem-solving on duplicates, email formatting, and category targeting.
  • Key fixes were applied to the deduplication process, email template HTML rendering, and workflow reliability. New categories and geographies (Netherlands, Belgium) for lead generation were also explored.
  • Testing for email deliverability and automation thoroughness was conducted, alongside discussion of video hosting for campaign assets.
  • The session concluded with a working process for scraping, outreach, and discussion of expansion plans, as well as offers for community support and workflow customization.

Action Items

  • Fix the duplicate checking mechanism in the Google Maps lead scraper to prevent repeated entries (Owner: Self).
  • Adjust the email outreach workflow to ensure HTML formatting and embedded video/images are properly displayed (Owner: Self).
  • Update and optimize the list of targeted zip codes for improved scraping efficiency, both for the Netherlands and Belgium (Owner: Self).
  • Further test and select a reliable email delivery service (e.g., Mailgun, custom SMTP), ensuring HTML emails render correctly in major clients (Owner: Self).
  • Extend the scraping and outreach system to new business categories (e.g., bookkeepers, personal trainers) and set up corresponding workflows (Owner: Self).
  • Prepare and upload campaign video assets to a suitable hosting platform; finalize thumbnail and image presentation in emails (Owner: Self).
  • Document and share workflow templates and onboarding materials with the user community for easier adoption (Owner: Self).
  • Organize and separate workflows by business category in project folders for improved management (Owner: Self).

Debugging & Optimizing Lead Scraper

  • Fixed issues with the duplicate removal process by changing the deduplication key to the website field, but encountered further issues with place ID and inconsistent field naming.
  • Identified problems with certain zip codes burning through scraping limits; recommended removing closely clustered zip codes for efficiency.
  • Confirmed the scraper is set to run at optimized intervals (every 2–5 minutes) and is now producing fewer duplicate entries, though sporadic empty rows or multiple entries still require follow-up fixes.

Email Outreach Workflow & HTML Email Testing

  • Built and tested the outreach system to send the first batch of cold emails to scraped contacts, with filtering by rating and status.
  • Attempted embedding video in emails, tested several video platforms (YouTube, DailyMotion, JumpShare), and settled on practical alternatives as direct embedding proved unreliable.
  • Modified email templates to clarify automation benefits to recipients, ensuring the message is clear that the outreach is handled for the client.
  • Conducted deliverability testing using Gmail and explored third-party providers (Mailgun, Mandrill, SMTP) to resolve plain text vs. HTML rendering issues.

Workflow Expansion & Maintenance

  • Explored adding new business categories (bookkeepers, personal trainers) by duplicating and adapting workflow templates for each.
  • Extended lead scraping to Belgium with new zip code lists and validated the process for non-overlapping geographies.
  • Reorganized project folders to segregate workflows by category (e.g., catering, admin/bookkeeping) for easier management.
  • Discussed future plans to add more outreach channels (e.g., Instagram DMs) and continued optimization based on category response rates.

Community Engagement & Support

  • Promoted the user community and available resources (guides, templates) for onboarding and workflow customization.
  • Offered live support via WhatsApp and detailed instructions for setting up tech stack elements (Google Sheets API, browserless, EasyPanel).
  • Shared self-hosted solutions for YouTube transcribing and other automation needs, highlighting cost savings vs. SaaS alternatives.

Decisions

  • Use the website field as primary key for deduplication in scraper — More reliable than place ID, matches other workflows.
  • Switch video hosting for outreach emails from YouTube to DailyMotion/JumpShare — Better privacy and less likelihood recipients are exposed to unrelated streams or branding.
  • Separate workflows per business category and geography — For better organization and scalability.

Open Questions / Follow-Ups

  • How to reliably embed playable video content in HTML emails without deliverability issues or excessive friction for recipients?
  • What are the best practices to prevent empty or malformed rows during deduplication, especially with inconsistent or missing data from Google Maps?
  • Which email delivery provider offers the optimal balance of ease, HTML support, and compliance for this type of automated outreach?
  • Are there additional business categories or outreach channels (e.g., Instagram, WhatsApp) that should be prioritized for template and workflow development?

Chat

The software and tools used in the workflow include: - **Google Sheets**: For storing and managing scraped company data, email addresses, statuses, and ratings. - **Browserless**: A headless browser service used to take screenshots of websites during the scraping process. - **CapCut** and **Screen Studio Pro**: Video editing and screen recording tools used to create and edit short clips for marketing and outreach. - **N8N (Naden)**: An automation platform used to build and run the scraping, rating, and email outreach workflows. - **Mailgun**, **Mandrill**, and **SMTP** services: Explored for sending HTML emails with better deliverability and formatting. - **DailyMotion** and **JumpShare**: Video hosting platforms used to host outreach campaign videos as embedding videos directly in emails was problematic. - **Canva**: Used for creating and editing images and thumbnails for email campaigns. - **YouTube Transcribe API**: Used in a self-hosted setup for transcribing YouTube videos. - **EasyPanel** and **Hookaroo**: Mentioned as part of the tech stack for hosting and managing services like text-to-speech and SSH keys. - **Telegram Bot**: For receiving error notifications from workflow executions. - **Google Maps API**: Used for scraping business data based on zip codes and categories. These tools are integrated into a custom automated lead generation and outreach system.

The Google Maps API is a set of web services provided by Google that allows developers to access and integrate various Google Maps features into their applications. Here’s how it generally works, especially in the context of scraping business data as described: ### How Google Maps API Works 1. **API Requests** Your application sends HTTP requests to Google Maps API endpoints with specific parameters such as location coordinates, search queries, categories, or zip codes. 2. **Authentication** Each request includes an API key that authenticates your application and tracks usage for billing and quota management. 3. **Data Retrieval** The API responds with structured data in JSON or XML format. For example, when searching for businesses, the Places API returns details like business name, address, phone number, website, ratings, and place IDs. 4. **Pagination** If the search results exceed a single page, the API provides a token to fetch the next page of results. 5. **Rate Limits and Quotas** Google enforces limits on the number of requests per second and daily quotas to prevent abuse and ensure fair usage. 6. **Data Usage** The retrieved data can be used to display maps, markers, or to build lead lists, as in your workflow where business info is scraped and stored in Google Sheets. ### Key Google Maps APIs Used for Lead Scraping - **Places API**: To search for businesses by category, location, or keyword and get detailed info. - **Geocoding API**: To convert addresses or zip codes into geographic coordinates. - **Maps JavaScript API**: For embedding interactive maps (less relevant for scraping). - **Distance Matrix API**: To calculate distances between locations (optional). ### Important Considerations - **Terms of Service**: Google Maps API has strict terms about data usage and scraping. Automated scraping outside of the API’s intended use may violate these terms. - **API Key Security**: Keep your API key secure to prevent unauthorized use. - **Quota Management**: Optimize requests to stay within free or paid quota limits. - **Data Accuracy**: The API provides up-to-date and accurate business data, but some fields may be missing or inconsistent. ### In Your Workflow Context - The scraper uses the Google Maps API to query businesses by zip code and category. - It collects business details including website URLs and emails (when available). - The data is stored and deduplicated in Google Sheets. - The workflow handles errors like offline websites or missing emails. - Rate limits are managed by adjusting scraping intervals and zip code selections. If you want, I can explain more about specific API endpoints or how to set up authentication and requests!

Sure! Here’s a **step-by-step beginner-friendly guide** to implement a Google Maps lead scraping process similar to what you’re working on, using Google Maps API and automation tools: — ## Step 1: Get Access to Google Maps API 1. **Create a Google Cloud Account** - Go to [Google Cloud Console](https://console.cloud.google.com/). - Sign up or log in. 2. **Create a New Project** - Click on “Select a project” > “New Project.” - Name your project (e.g., “Lead Scraper”). 3. **Enable Google Maps APIs** - In the Cloud Console, go to “APIs & Services” > “Library.” - Enable the following APIs: - **Places API** (for business search) - **Geocoding API** (optional, for address to coordinates) - **Maps JavaScript API** (optional, for map display) 4. **Create API Key** - Go to “APIs & Services” > “Credentials.” - Click “Create Credentials” > “API Key.” - Restrict the key to your project and APIs for security. — ## Step 2: Understand What Data You Want to Scrape - Decide on **business categories** (e.g., catering, bookkeepers). - Decide on **geographic areas** (e.g., zip codes, cities). - Plan to collect: business name, address, phone, website, email (if available), ratings. — ## Step 3: Make Your First API Request (Test) 1. Use a tool like **Postman** or your browser to test API calls. 2. Example Places API request to search for businesses near a location: ``` https://maps.googleapis.com/maps/api/place/nearbysearch/json?location=52.3676,4.9041&radius=5000&type=restaurant&key=YOUR\_API\_KEY ``` - `location`: latitude,longitude (e.g., Amsterdam) - `radius`: search radius in meters - `type`: business category (e.g., restaurant, accountant) - `key`: your API key 3. The response will be JSON with business details. — ## Step 4: Automate Data Collection Since Google Maps API returns limited results per request, you’ll need to: - Loop through **multiple zip codes or locations**. - Handle **pagination** to get all results. - Store results in a database or spreadsheet (e.g., Google Sheets). — ## Step 5: Set Up Google Sheets for Data Storage - Create a Google Sheet with columns like: - Business Name - Address - Phone - Website - Email - Rating - Status (e.g., scraped, emailed) — ## Step 6: Build the Scraper Workflow Using Automation Tools You can use tools like **N8N**, **Zapier**, or write a custom script in Python/Node.js. ### Using N8N (No-code/Low-code Automation): 1. **Create a new workflow** in N8N. 2. **Add HTTP Request nodes** to call Google Maps Places API for each zip code. 3. **Parse the JSON response** to extract business info. 4. **Add Google Sheets nodes** to append or update rows with scraped data. 5. **Add logic to handle duplicates** by checking website URLs or place IDs. 6. **Schedule the workflow** to run periodically (e.g., every few minutes). — ## Step 7: Scrape Emails and Website Screenshots (Optional) - Use additional tools or APIs to visit business websites and scrape emails. - Use headless browsers (e.g., Browserless) to take screenshots for rating or verification. — ## Step 8: Set Up Email Outreach Automation - Use your scraped emails to send cold outreach emails. - Build email templates (HTML or plain text). - Use email services like Mailgun or Mandrill for sending bulk emails. - Track email status in your Google Sheet. — ## Step 9: Test and Debug - Run your workflow on a small set of zip codes. - Check for duplicates, missing data, or errors. - Adjust scraping intervals to avoid hitting API rate limits. — ## Step 10: Scale and Optimize - Add more zip codes or categories. - Optimize deduplication logic. - Improve email templates and outreach strategy. - Monitor API usage and costs. — # Summary Checklist | Step | Task | Tools/Resources | |—––|———————————––|————————————| | 1 | Get Google Maps API key | Google Cloud Console | | 2 | Define target categories & areas | Your business goals | | 3 | Test API requests | Postman, browser | | 4 | Automate scraping loop | N8N, Zapier, or custom script | | 5 | Store data in Google Sheets | Google Sheets | | 6 | Build workflow to scrape & save | N8N + Google Sheets nodes | | 7 | Scrape emails & screenshots (optional) | Browserless, custom scripts | | 8 | Set up email outreach | Mailgun, Mandrill, email templates | | 9 | Test & debug | Logs, manual checks | | 10 | Scale & optimize | Workflow improvements | — If you want, I can help you with a **simple example workflow** or a **basic script** to get started! Would you like that?

Great! Here’s a **simple example workflow** using **N8N** (a popular no-code automation tool) to scrape business data from Google Maps Places API and save it to Google Sheets. This will get you started without coding. --- # Simple N8N Workflow to Scrape Google Maps Business Data ### Prerequisites: - N8N account or self-hosted instance ([n8n.io](https://n8n.io/)) - Google Cloud API key with Places API enabled - Google Sheets with a sheet prepared to receive data (columns: Name, Address, Website, Rating) --- ## Step 1: Create Google Sheet Make a Google Sheet with columns: | Name | Address | Website | Rating | --- ## Step 2: Set Up N8N Workflow ### 1. **Start Node** - Use a **Manual Trigger** node to start the workflow manually. ### 2. **HTTP Request Node (Google Places API)** - Add an **HTTP Request** node to call the Places API. **Settings:** - Method: `GET` - URL: ``` https://maps.googleapis.com/maps/api/place/nearbysearch/json ``` - Query Parameters: - `location`: `52.3676,4.9041` (Amsterdam coordinates, change as needed) - `radius`: `5000` (5 km radius) - `type`: `restaurant` (change to your target category) - `key`: `YOUR_API_KEY` (replace with your Google API key) ### 3. **Set Node (Extract Data)** - Add a **Set** node to extract and format the data you want. **Example fields to set:** - `Name`: `{{$json["results"][0]["name"]}}` - `Address`: `{{$json["results"][0]["vicinity"]}}` - `Website`: Leave empty for now (Places API doesn’t always provide website in this endpoint) - `Rating`: `{{$json["results"][0]["rating"]}}` *Note:* To handle multiple results, you’ll need to use a **SplitInBatches** node or a **Function** node to loop through all results. ### 4. **Google Sheets Node (Append Data)** - Add a **Google Sheets** node to append rows to your sheet. **Settings:** - Operation: `Append` - Sheet Name: Your sheet name - Map the fields from the Set node to the columns in your sheet. --- ## Step 3: Run and Test - Execute the workflow manually. - Check your Google Sheet for new rows with business data. --- ## Optional Improvements - Add **pagination handling** to get more than 20 results (Google Places API limit per request). - Use a **Function** node to loop through all results in the JSON array. - Add error handling and deduplication logic. - Extend to scrape emails by visiting websites (requires more advanced setup). - Schedule the workflow to run automatically. --- # Example Function Node to Extract All Results Add this **Function** node after the HTTP Request node to output each business as a separate item: ```javascript const results = $json["results"]; return results.map(item => { return { json: { name: item.name, address: item.vicinity, rating: item.rating || null, place_id: item.place_id } }; }); ``` Then connect this to the Google Sheets node. --- If you want, I can help you build this workflow step-by-step in N8N or provide a simple Python script example instead. Which do you prefer?