Automate Your Customer Support with Slack, AI, and Flask

Learn how to build a Slack bot with Flask and OpenAI that can automatically respond to support questions, escalate complex issues, and streamline internal operations.

May 12, 202511 min readAI & Automation

Introduction

Slack is where internal support happens—so why not automate it? In this guide, you'll learn how to build a customer support assistant using Flask, OpenAI, and Slack's Events API. You'll also see how to train it on your company's knowledge base and escalate unresolved issues.

System Overview

  • Slack app receives `app_mention` events
  • Flask backend processes the message and context
  • OpenAI generates a reply or recommends escalation
  • Bot responds in the same thread with an answer or tag

Slack Bot Event Handler Setup

from slack_bolt import App
  from slack_bolt.adapter.flask import SlackRequestHandler
  import os
  
  app = App(token=os.environ['SLACK_BOT_TOKEN'], signing_secret=os.environ['SLACK_SIGNING_SECRET'])
  handler = SlackRequestHandler(app)
  
  @app.event("app_mention")
  def handle_mention(body, say):
      user = body['event']['user']
      text = body['event']['text']
      response = generate_ai_response(text)
      say(text=response)

Generating AI Replies with OpenAI

import openai
  openai.api_key = os.getenv("OPENAI_API_KEY")
  
  def generate_ai_response(query):
      messages = [
        {"role": "system", "content": "You are a helpful support bot. Answer questions based on internal knowledge."},
        {"role": "user", "content": query}
      ]
      response = openai.ChatCompletion.create(model="gpt-4", messages=messages)
      return response.choices[0].message['content']

Escalation Logic

You can program fallback behavior by checking for a confidence threshold or a keyword filter, then alert a human.

  • If AI response includes 'I'm not sure', tag @support
  • Log unresolved questions to Notion or Airtable
  • Add to a fine-tuning dataset for future improvement

Why This Saves Teams Time

  • Answers FAQs instantly, 24/7
  • Reduces load on human agents
  • Creates a log of all answered support queries
  • Improves over time via fine-tuning

Need a Custom Slack Bot?

Whether you need a private Slack assistant trained on internal docs or a customer-facing bot that speaks your product's language, I can help. Let's talk about building a smart, branded assistant for your team.

Further Reading

  • Slack Bolt SDK for Python
  • OpenAI's best practices for GPT prompts
  • Fine-tuning GPT models for support tasks