---
title: "system.user.addRole"
description: "Adds a role to the specified user source."
---

# system.user.addRole

> Adds a role to the specified user source.

This function is used in **Python Scripting**.

## Description
Adds a role to the specified user source. When altering the Gateway System User Source, the [Allow User Admin](gateway\gateway-settings\gateway-setup.md) setting must be enabled.

## Client Permission Restrictions
[Permission Type](projects\project-properties\project-properties.md#client---permissions): User Management

Client access to this scripting function is blocked to users that do not meet the role/zone requirements for the above permission type. This function is unaffected when run in the Gateway scope.

## Syntax
`system.user.addRole(userSource, role)`

### Parameters
Type | Parameter | Description 
------- | ------- | ------
String| `userSource` | The user source to add a role to. Blank will use the default user source.
String| `role` | The role to add. Role must not be blank and must not already exist.

### Returns
**UIResponse** - an object with lists of warnings, errors, and info about the success or failure of the add.
### Scope
Gateway, Designer, Client

## Code Examples
```python title="Example #1"
# This example adds a role "Operator" to the user source "MyUserSource".
system.user.addRole("MyUserSource", "Operator")
```