The Technical Framework:

1. Data Storage: Your Google Sheet contains recipient information, personalization fields, and scheduled send dates
2. Smart Filtering: The workflow automatically filters for entries marked "Waiting for sending" and scheduled for today
3. Email Composition: Gmail node automatically creates personalized emails using merge fields
4. Delivery: Emails are sent directly through your Gmail account
5. Status Tracking: The spreadsheet is automatically updated with sent status and timestamps

This workflow runs on n8n, a powerful automation platform that securely connects your Google apps with zero coding required. Setup takes minutes, not days, and delivers immediate time savings from the very first campaign.