(aws-chatbot): Creating SlackChannelConfiguration

[coding93ls]

I'm attempting to configure a Slack client with AWS Chatbot in order to send Inspector notifications to a Slack channel.
I'm running a Python script which performs AWS authentication, then creates the chatbot configuration (code snippet below)
I expected the Slack client with the channel to be created on AWS, but upon clicking on AWS Chatbot in the console, no Slack client is configured.
The code just runs without any exception being raised, the info logs are printed, but nothing else happens.

import aws_cdk.aws_chatbot as chatbot_cdk
import aws_cdk.aws_sns as sns_cdk
from aws_cdk import core

def createChatbotConfig():
    try: 
        app = core.App()
        MyStack(app, "MyStack")
        app.synth()
    except Exception as ex:
        error_message = f"An error occurred while configuring chatbox: {str(ex)}"
        log.error(error_message)
        sys.exit(1)
        
class MyStack(core.Stack):
    def __init__(self, scope: core.Construct, id: str, **kwargs) -> None:
        super().__init__(scope, id, **kwargs)

        log.info("Creating Slack channel")
        slack_channel = chatbot_cdk.SlackChannelConfiguration(self, "MySlackChannel",
                                                                 slack_channel_configuration_name="Inspector-Slack-Config",
                                                                 slack_workspace_id="TXXXXXXXX",
                                                                 slack_channel_id="CXXXXXXXXXX"
                                                                 )
        slack_channel.add_notification_topic(sns_cdk.Topic(self, "MyTopic"))
        log.info("Slack channel created")

I'm probably missing something, quite new to AWS. Thanks in advance.

Additional info:
Python 3.10