Google Maps to Airtable Lead Scraper with GPT Contact Extraction from Impressum

How it Works This workflow automates the process of discovering companies in different cities, extracting their contact data, and storing it in Airtable. City Loop (Airtable → Google Maps API) Reads a list of cities from Airtable. Uses each city combined with a search term (e.g., SEO Agency, Berlin) to query Google Maps. Marks processed cities as “checked” to allow safe restarts if interrupted. Business Discovery & Deduplication Searches for businesses via Google Maps Text Search. Checks Airtable to avoid scraping the same company multiple times. Fetches detailed info for each business via Google Maps Place Details API. Impressum Extraction (Website → HTML Parsing) Builds an Impressum page U

Help me set up the n8n workflow "Google Maps to Airtable Lead Scraper with GPT Contact Extraction from Impressum" (https://n8n.io/workflows/8003). It uses: Airtable, HTTP Request, HTML, OpenAI Chat Model, Information Extractor. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.