How to enable the item number attribute for specific item class at user level

Summary:

We have a use case where we need to restrict all users except 1 service account to update item number and description for specific item class.
I have tried using data security access but it is not working.

Is there any alternative way to achieve this?

Content (please ensure you mask any confidential information):

Version (include the version you are using, if applicable):

Oracle Fusion Cloud Applications
25B (11.13.25.04.0)

Code Snippet (add any code snippets that support your topic, if applicable):