---
title: User ID Parameter
description: The User ID passed in the session from AM to the REMOTE_USER server variable.
component: web-agents
version: 2025.11
page_id: web-agents:properties-reference:com.sun.identity.agents.config.userid.param
canonical_url: https://docs.pingidentity.com/web-agents/2025.11/properties-reference/com.sun.identity.agents.config.userid.param.html
---

# User ID Parameter

The User ID passed in the session from AM to the `REMOTE_USER` server variable.

Default: `UserToken`

|                    |                                                                             |
| ------------------ | --------------------------------------------------------------------------- |
| Property name      | `com.sun.identity.agents.config.userid.param`   Introduced in Web Agent 4.x |
| Function           | Policy client service                                                       |
| Type               | String                                                                      |
| Bootstrap property | No                                                                          |
| Required property  | No                                                                          |
| Restart required   | No                                                                          |
| AM console         | Tab: `AM Services`Title: `User ID Parameter`                                |