I mistakenly deleted a project that was attached to my project in WBS FOR GANTT CHART . How can i recover them back please?
Welcome to the Atlassian Community!
In Jira, delete does what it says on the tin - it deletes it. But Cloud Jira does now have a bin for projects (not individual issues, you should still not allow issue delete to anyone other than your admins), so you can probably get this back.
Go to https://<your place>.atlassian.net/jira/settings/projects/trash
and you should see your project listed, with a "recover from trash" option.
It looks like you're new here. Sign in or register to get started.