Hi @Reshma Regi ,
there's no issue field security in Jira. Security is based on the issue, not on a field.
There are some apps for that purpose, but I can't recommend one, because we do not have any of them:
one way in Jira to achieve this in Jira without the use of apps is to remove the fields from the screen associated with the Edit operation and move them to a different screen that is only available in a transition. You can then move on and restrict the transition to a group of users. But this means no one will be able to edit the fields when viewing the issue.
I have multiple projects that use variations of the same base workflow. The variations depend on the requirements of the project or issue type. The variations mostly come in the form of new statuses ...
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