Darn – that didn’t work. Only Slack Apps can add interactive elements to messages. Manage your apps here: https://api.slack.com/apps/

[leoszn]

Hi, I have a problem that receiving response from the message button, please help.

my ngrok URL is https://46dc7138.ngrok.io, I have set my interactive component URL to https://46dc7138.ngrok.io/slack/actions and in my code @app.route('/slack/actions', methods=['POST']) but I still get the error Darn – that didn’t work. Only Slack Apps can add interactive elements to messages. Manage your apps here: https://api.slack.com/apps/

[chaunceyyann]

You have to make an App instead a legacy customized bot integration.
https://api.slack.com/interactive-messages