It is indeed possible to have Nested Groups within JIRA. However, you will have to enable it from the directories page and some other rules apply. See;
I saw that my installation had this configured correctly. However, when I try to perform a 'join' operation from one sub-group to the parent group, I'm getting an error saying I don't have Permissions to perform the operation. I am an administrator. Is there something else that needs to be configured first ?
Is it possible that the parent group is in an external directory and the external directory is read only? In that case you would not have permission to write to the read only directory by adding the subgroups. It is not common for Confluence administrators to set up write access to an external directory, like LDAP.
If the external directory is read-only with local groups you should be able to add groups from the external directory into parent groups that reside in the internal Confluence directory.
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