Page Comparison

Force assignment (default)

Forcibly assigns the issue to the default member of the selected Project role. In this case, any assignee selected on the Transition screen (if any) is ignored.

Only if "Automatic"

Assigns the issue to the default member of the selected Project role only when the user selects Automatic in the Assignee field on the Transition screen. If not the issue is assigned by JIRA to the user selected on the Transition screen.

Use selected assignee only if member of required role

Assigns the issue to the member selected on the Transition screen, only if the member belongs to the selected Project role. If not, it assigns the issue to the default member of the selected Project role.

Use selected assignee if changed on the transition screen

Assigns the issue to the default member of the selected Project role only when the user selects Automatic in the Assignee field on the Transition screen. If not the issue is assigned by the post-function to the user selected on the Transition screen.

Conditional execution

To execute this post-function based on the result of a groovy expression see Conditional execution using Groovy expression.