> For the complete documentation index, see [llms.txt](https://docs.helmut.de/helmut4-releases/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.helmut.de/helmut4-releases/v4.6.1/helmut4-components/streamdesigner/nodes/outputs/user.md).

# User

An **User Output** can be used to inform a defined user via message or notification. This can be done after each node in the stream. For example, if you want to inform the user whether an export has been successfully completed, this is possible via a "send message to user" node at the end of the stream.