The n8n workflow: Schedule (weekly Monday). Apollo HTTP POST with industry/headcount/geography/title/job filters. Filter node applying email confidence threshold and job count minimum. Supabase deduplication against 90-day prior outreach log. OpenAI enrichment — GPT-4o generates personalized email first line from job data. Saleshandy API creates contact in sequence with AI personalization attached. Zero manual steps after initial setup. Full workflow at omnionlinestrategies.com/staffing-firm-new-client-machine.