Assignee

Field code

%{issue.assignee}

Read

Returned value	The name of the current assignee
Output data type	TEXT
Example output	admin.istrator

Allowed input TEXT	A valid user name (not user's full name) or name of project role.
Allowed input NUMBER
Example input	admin.istrator

Updates the assignee of an issue. The input has to be a valid user name (not user's full name).

The value can be retrieved from multiple sources and other user picker field codes.

Alternatively check out the functions related to Users, groups and roles such as leastBusyUserInRole().

You can also use text unassigned to make unassign an issue.