I’m building a very simple Google Chat App on Cloud Functions (2nd gen) (Python). The app should just reply "OK" when I send a message from mail.google.com/chat. But in the logging error area always returns this error: Can't post a reply. The Chat app didn't respond or its response was invalid. If your Chat app is configured as an add-on, see "Build Google Chat interfaces" (https://developers.google.com/workspace/add-ons/chat/build) in the Google Workspace add-ons documentation. Otherwise, see "Receive and respond to Google Chat events" (https://developers.google.com/chat/api/guides/message-formats) in the Chat API documentation." Python app import functions_framework @functions_framework.http def mi_app_de_chat(request): event = request.get_json(silent=True) if event and event.get("type") == "ADDED_TO_SPACE": return {"text": "Your Welcome"} return {"text": "OK"} Continue reading...