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

[Community Alums]

Hey there,

You will need to adjust the Write ACLs for incident to control this. This thread might be helpful:

https://www.servicenow.com/community/service-management-forum/ticket-conversation-need-to-make-comme...

~Nick