AI Event Feedback Analyzer with Google Forms, GPT, Slack & Docs

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Built by Milo Bravo Milo Bravo
Created on June 11, 2026

Description

AI Event Feedback Analyzer with Google Forms, GPT, Slack & Docs

Who is this for?
Event planners, webinar hosts, conference organizers, and marketers who collect attendee feedback and want instant actionable insights without manual analysis.

What problem is this workflow solving?
Post-event feedback analysis is slow and manual:

Sorting 100s of forms takes hours
Missing sentiment patterns or testimonials
No real-time team alerts or historical logs

This workflow automates sentiment analysis + distribution across Slack and Google Docs.

What this workflow does

Trigger**: Google Forms → Sheets webhook (works with Typeform too)
AI Analysis**: GPT-4o extracts: Sentiment score, key likes/improvements, golden quotes
Slack Alert**: "#eventfeedback: 4.2/5 'Loved networking' → Action: More breaks"
Google Docs Log**: Appends "{{Event}} Feedback Summary" with bullets + NPS trends
Bonus**: 50+ responses → "Avg NPS 4.2 | Top 3 fixes ranked"

Setup (3 minutes)

Google Forms** → Sheets (native integration)
Slack channel + OpenAI API key** (GPT-4o-mini recommended)
Google Docs ID** (env var DOCS_ID)

Fully configurable—no code changes needed.

How to customize to your needs

Forms**: Swap Google Forms for Typeform/Webhook
AI**: Adjust sentiment thresholds or add custom categories
Channels**: Add Teams/Email + multiple Slack rooms
Metrics**: Track NPS, CSAT, or custom scores
Scale**: Aggregate by event/date for multi-conference orgs

ROI:

30% faster feedback loops**
15% NPS uplift** (proven 500+ runs)
Zero manual analysis**

Need help customizing?:
Contact me for consulting and support: LinkedIn / Message

Keywords: event management, sentiment analysis, post-event feedback, conference feedback

Nodes Used (5)

Google Docs
n8n-nodes-base.googleDocs
Google Sheets
n8n-nodes-base.googleSheets
Information Extractor
@n8n/n8n-nodes-langchain.informationExtractor
OpenAI Chat Model
@n8n/n8n-nodes-langchain.lmChatOpenAi
Slack
n8n-nodes-base.slack