Analyze customer feedback and alert negative sentiment with gpt-5.6-terra and Telegram
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.
What this workflow does
This AI workflow has 26 nodes and runs when an HTTP POST request hits its webhook URL (plus 2 other triggers). Along the way it connects Telegram, Google Sheets, OpenAI Chat Model and Gmail.
How it runs
Trigger: When an HTTP POST request hits its webhook URL (plus 2 other triggers).
- Normalize Feedback (Edit Fields (Set)): sets 8 fields: feedback_id, received_at, customer_name…
- Read Feedback from Sheets (Google Sheets): uses Google Sheets
- Read Analysis from Sheets (Google Sheets): uses Google Sheets
- Validate Feedback Input (If): checks a condition and branches into true / false
- Summarize Monthly Feedback (AI Agent): runs an AI agent, with model: OpenAI Monthly Model
- Filter Last 7 Days (Code): runs custom JavaScript code
- Log Feedback to Sheets (Google Sheets): append
- Notify Invalid Feedback (Telegram): uses Telegram
- Send Monthly Report (Telegram): uses Telegram
- Summarize Weekly Feedback (AI Agent): runs an AI agent, with model: OpenAI Weekly Model
…plus 9 more steps. See the full node list below.
Services it uses
Before you upgrade to n8n 3.0
Nothing in this workflow is removed in n8n 3.0, so it should import and run after the upgrade.
Nodes used (10)
- Webhook
n8n-nodes-base.webhook - Edit Fields (Set)
n8n-nodes-base.set - If
n8n-nodes-base.if - Telegram
n8n-nodes-base.telegram - Google Sheets
n8n-nodes-base.googleSheets - AI Agent
@n8n/n8n-nodes-langchain.agent - OpenAI Chat Model
@n8n/n8n-nodes-langchain.lmChatOpenAi - Gmail
n8n-nodes-base.gmail - Schedule Trigger
n8n-nodes-base.scheduleTrigger - Code
n8n-nodes-base.code
From the author
Catch unhappy customers before they leave. This workflow receives feedback via webhook, logs it to Google Sheets, classifies sentiment with OpenAI, and fires a Telegram alert the moment sentiment turns negative. Last updated: September 2026. Quick overview…