# User Displayname Condition With the help of the User Displayname Condition it is possible to use all or part of the display name of the user who is executing the stream as a condition for further actions. For example, if you want to make the behaviour of the stream dependent on whether the user has a certain display name, you would enter the display name or parts of the display name for which the behaviour should change in this node. Here the way can be defined. For example, if the node is to be successful when it comes to a specific user, "is" would be used as the condition. "Is\_not" would be used if the node should fail for a specific user. This makes it possible to decide precisely whether the behaviour should apply to a user or not. The user display name condition can be queried in every stream. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.helmut.de/helmut4-releases/v4.9.1/helmut4-components/streamdesigner/nodes/conditions/user-4/user-displayname-condition.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.