Received an action call without an action and chatbot return same as input

Below is my virtual env:

Rasa Version      :         3.6.15
Minimum Compatible Version: 3.5.0
Rasa SDK Version  :         3.6.2
Python Version    :         3.9.18
Operating System  :         Windows-10-10.0.22621-SP0
Python Path       :         C:\Users\alvin\miniconda3\envs\rasa-bot\python.exe

I’ve added below and ensured that the action_endpoint is same as the url in endpoints.yml:

from flask import Flask, render_template, request, jsonify
import requests

ACTION_ENDPOINT = "http://localhost:5055/webhook"
app = Flask(__name__)

def index():
    return render_template("index.html")

@app.route("/webhook", methods=["POST"])
def webhook():
        user_message = request.json["message"]
        print("User Message:", user_message)

        # Send user message to the custom action server and get chatbot's response
        action_response =, json={"message": user_message})
        action_response.raise_for_status()  # Raise an error for bad responses
        action_response_json = action_response.json()

        print("Action Response:", action_response_json)

        if action_response_json and isinstance(action_response_json, list):
            bot_response = action_response_json[0].get(
                "text", "Sorry, I didn't understand that."
            bot_response = "Sorry, I didn't understand that."

        return jsonify({"response": bot_response})

    except KeyError:
        return jsonify({"response": "Error: 'message' key not found in the request."})

    except requests.exceptions.RequestException as e:
        print(f"Error communicating with the custom action server: {e}")
        return jsonify(
            {"response": "Sorry, there was an issue processing your request."}

if __name__ == "__main__":, port=3000)

I’m able to access my botbox in but whatever I entered as message, it returned back the same and the action server shows an action call within an action.

I’ve read through the archives and can’t find a solution, appreciate someone can advise me as I’m very new to Rasa.

Thank you in advance.