Run A/B-tested email campaigns using Gmail, Google Sheets, and Slack

Run professional email campaigns with A/B testing, Google Sheets tracking, and Slack analytics. FEATURES: A/B testing with automatic 50/50 split Email validation and deduplication Batch processing with anti-spam delays Professional HTML email templates Complete campaign tracking and logging Real-time Slack notifications WORKFLOW: Trigger campaign (manual, scheduled Monday 9AM, or webhook) Read and validate contacts from Google Sheets Assign A/B variants automatically Send personalized HTML emails via Gmail Log results and update contact status Slack notifications on start/completion/errors SETUP: Create Google Sheet with 4 tabs: Contacts: name, email, segment, sent, unsubscribed, sentdate, campaign, variant, errormsg Campaigns: Campaign ID, Name, Start Date, Total Contacts, Valid, Invalid, Already Sent, Unsubscribed, Variant A, Variant B, Status, End Date, Duration Send Log: Timestamp, Campaign ID, Email, Name, Variant, Subject, Status Metrics: Campaign ID, Opens, Clicks, Unsubscribes Replace YOURDOCUMENTID in all Sheets nodes Connect Gmail credentials Connect Slack (marketing, errors channels) CUSTOMIZABLE: Company name, colors, logo in Configure Campaign node Email content and design in Prepare Email node A/B test subjects Batch size and delays IDEAL FOR: Newsletters, product launches, marketing campaigns, announcements, and any bulk email needs.