---
title: "How to Change Username values on the User Record"
slug: "how-to-change-username-values-on-the-user-record"
updated: 2023-07-31T17:53:57Z
published: 2023-07-31T17:53:57Z
canonical: "help.rapididentity.com/how-to-change-username-values-on-the-user-record"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://help.rapididentity.com/llms.txt
> Use this file to discover all available pages before exploring further.

# How to Change Username values on the User Record

### Change a Username from studentID to the First Part of a User's Email

1. Open the Consumer Application in Studio and go to the **Advanced** Menu.
2. Find the application's **User** Record Mapping, then click the kabob menu and select **Details**.
3. Scroll down to the Field Mappings and find the **username** target field name. Again, click the kabob menu and select **Details**.
4. Change the **Value Type** from **Field** to **Expression**, then add the following script to the Value field:

```
function() {
    const email = SRC.email[0];

    if (email && typeof email === 'string') {
        const emailSplit = email.split('@');

        return emailSplit[0]
    }

    return ''
}
```
5. Select the checkboxes for **On Create** and **On Update**, then click **Save**. ![Change studentID to first part of Email.png](https://cdn.document360.io/4d958006-b877-42af-8de5-00e3bb7fe41d/Images/Documentation/Change%20studentID%20to%20first%20part%20of%20Email%281%29.png)
6. The next time the User jobs are run, check in the Data Explorer to ensure that the data is being applied correctly.