How do you create a new access control in ServiceNow?

[Community Alums]

Hi @jglez1 ,

Create an access control rule (ACL) to prevent the Needs review field from being modified after it has been set.

Before you begin

Role required: admin with elevated security

About this task

The newly created UI Policy makes the Needs review field mandatory when a change request reaches the Complete state.

The subsequent configuration of the state model ensures that a value is required in the Needs review field before the change request can be saved in the Complete state. To prevent the Needs review value from being changed after it has been set, create a new access control level record (ACL) to make the field read-only.

Procedure

1. Open the Change Request form.
2. Open the form context menu and select Configure > Security Rules.
3. Elevate your security role in the user menu that opens when you click your name in the header.
   Only administrators with elevated security roles can add ACLs.
4. Click New.

Also, refer to the doc : https://docs.servicenow.com/bundle/washingtondc-it-service-management/page/product/change-management...