Optimize Klaviyo campaign send times and email reports with Gmail
Ready for 3.0Ready for 3.0. This template uses no nodes that n8n 3.0 removes. No removed nodes, versions or helpers found. Static check, last run 2026-10-19.
Nodes used (6)
- Schedule Trigger
n8n-nodes-base.scheduleTrigger - Edit Fields (Set)
n8n-nodes-base.set - HTTP Request
n8n-nodes-base.httpRequest - Code
n8n-nodes-base.code - Gmail
n8n-nodes-base.gmail - Error Trigger
n8n-nodes-base.errorTrigger
What it does
How it works Every Monday at 8 AM, the workflow pulls all sent email campaigns from Klaviyo for the past 90 days It fetches open rate and click rate for each campaign, then groups results by audience segment and send hour Time slots with at least 3 campaigns are ranked by average open rate A formatted HTML report is emailed showing your best-performing send times, broken down per audience — with medal icons for the top 3 slots Set up steps Add your Klaviyo API key to the Header Auth credential — takes about 2 minutes Connect your Gmail account to the two Gmail nodes (report delivery + error alerts) In both Gmail nodes, update the Send To field to your preferred email address (Optional) Open the Config node to adjust the lookback window (default: 90 days) or the minimum campaigns-per-slot threshold (default: 3) Activate the workflow — it will run automatically every Monday, or trigger it manually anytime from the canvas