---
title: "How To Restrict Acknowledgement on the Perspective Alarm Status Table"
---

# How To Restrict Acknowledgement on the Perspective Alarm Status Table

> You can restrict specific users or roles from Acknowledging alarms by setting the **enableAcknowledge** property in the Property Editor to **false**. This hides the Acknowledge button on the Alarm Status Table for those users who do not have permission. You can setup permissions for any [role](platform\security\classic-authentication-strategy\managing-users-and-roles\managing-users-and-roles.md), user and [user source](platform\security\classic-authentication-strategy\classic-authentication-strategy.md) in your system.

## Security for Alarm Acknowledgement

For example, if you only want those users with the Operator role to acknowledge alarms, the correct permission must be assigned.

1. Select the Alarm Status Table component, and click the **enableAcknowledge binding** ![](2019-05-20_12-50-10.png) icon to open the Property Binding window.
2. Under **Property Binding Type**, select **Expression**.
3. Click the **Function** ![](2019-06-17_10-52-59.png) icon and scroll down to **Users**, and select **isAuthorized**. This enters the function name.
4. Edit the expression to read: **isAuthorized(true, "Authenticated/Roles/Operator")**.
5. Click **OK**. 

![](2019-07-22_9-43-51.png)

If you currently have the 'Operator' role, you'll notice in the Property Editor of the Designer that the **enableAcknowledge** property is set to **true**, and for other roles, it will be set to **false**.