Work with issues without participation in the project

[Svitlana Rekhalska]

Is it possible to configure a user to see tickets (in which they are Assignee, Reporter, or Watchers) but not to be a project member?

[Dexter de Vera]

Hi @Svitlana Rekhalska ,

No, but its possible to see all tickets in a project even your not a member by adding the user in Browse project permission.

You can check this link to learn more how permission works: https://support.atlassian.com/jira-service-management-cloud/docs/overview-of-jira-cloud-permissions/ 

[Svitlana Rekhalska]

Is it possible to set up permissions so that the participant is in the project, but sees only those tasks in which he is a participant or watcher?

[Dexter de Vera]

Request participant is for service management.

If your using Jira software company manage project.

Add the user/group in browse project permission then

Create a securit level for your project then include all the project roles(in your project), assignee, reporter and watcher.

You may check this link to know more about security level:

https://support.atlassian.com/jira-cloud-administration/docs/configure-issue-security-schemes/