---
title: Property error handling behaviour and Act as user
description: "### Property error handling behaviour Defines how errors in setting properties are handled: - **Stop** (default): If there is an error in updating one property, no properties will be updated. - **Continue**: If there is an error in updating one…"
url: "https://extensionkit.unitfly.com/documentation/property-operations-property-error-handling-behaviour-and-act-as-user/"
updated: "2025-05-01"
category: Configurations / Property Operations / Simple Rule Configuration
---

# Property error handling behaviour and Act as user

### Property error handling behaviour

Defines how errors in setting properties are handled:

- **Stop** (default): If there is an error in updating one property, no properties will be updated.
- **Continue**: If there is an error in updating one property, other properties will still be updated.

### Act as user

Impersonate the user when executing an action.

1. Expand **Act as User**.

The **Type** field is available.

### Type

*Act as user > Type*

Specifies impersonation type. Based on this setting, the following users are set as Last modified by after the rule is executed.

- **None:** M-Files Server
- **LastModified:** The last user who modified this object before the rule was executed (it can also be M-Files Server).
- **LastActualUserModified:** The last real user account that made changes on this object.