# System User Entity

> The System User entity holds all the users, groups, and robot accounts available in your tenant.

The System User entity holds all the users, groups, and robot accounts available in your tenant.

A banner asking you to upgrade is displayed when you access any entity created prior to the release of the System User entity:

![docs image](https://dev-assets.cms.uipath.com/assets/images/data-service/data-service-47571-6abd25a7.webp)

The upgrading process converts the type of **Created By** and **Modified By** fields from **UniqueId** to **Relationship**.

![docs image](https://dev-assets.cms.uipath.com/assets/images/data-service/data-service-46996-f79c6708.webp)

:::note
Processes using **Created By** and **Updated By** fields must be updated to query the relationship to identify users that created or modified the records, and use the [latest version of Data Service activities](https://docs.uipath.com/activities/docs/release-notes-uipath-dataservice-activities).
:::

## Behavior

* Entity records are synchronized with organization users and they are updated periodically.
* The System User entity cannot be deleted or modified by any user.
* Modifying data in the System User entity is possible only by submitting a service request.
* Users, groups, or robots are mapped in other entities by relating to the System User entity through a **Relationship** field type;
* **Created By** and **Updated By** system built-in fields are populated by the records of the System User entity.
* Records created by users who were removed from your organization prior to the System User update display `Deleted User` for **Created By** and **Updated By** fields.

## User Type Choice Set

The **System User** entity has a predefined choice set (i.e., **User Type**) that populates the entity **Type** field with the following values:

* **User**
* **Group**
* **Robot**

  The **Robot** option is available only for Robot Accounts.

The **User Type** choice set cannot be deleted or modified by any user.

## System User entity fields

| Entity Field | Data Type | Description |
| --- | --- | --- |
| **Id** | Identifier | The ID of the user or group in your tenant.Is the same ID from Identity Server. |
| **Create Time** | Date-Time | The creation time of the user or group. |
| **Email** | Email | The email of the user. For groups, this field is left blank. |
| **IsActive** | Yes/No | Flag indicating if the user is active in your tenant. Set to `Yes` if the user is active.Set to `No` if the user was removed from the Identity Server. |
| **Name** | Text | The name of the user or group.If the user does not have a name set, the field displays the email. |
| **Type** | Choice Set | The entity record type, populated by the User Type choice set. |
| **Update Time** | Date-Time | The last time the user or group got updated. |