how to make incident activity field read only only view when state is resolved in servicenow portal

[Srikanth Vadla1]

Here I have given the reference image where in the portal view When the incident state is resolved or closed I want the activity button must be read only in service portal view . 

Can some one help me Step by step how to make this to work in order of detail

[Isaac Vicentini]

The safest way to do this is to clone the "incident.comments" ACL of operation "write" and add a state condition to your cloned ACL.

---

If my answer helped you in any way, please mark it as correct/helpful 🙂

Regards,

Isaac Vicentini.