Last commenter

JWT expression

%{issue.lastComment.author}

Jira expression

issue?.comments!= [] ? issue?.comments[issue?.comments?.length-1].author?.accountId : null

Comments are stored in lists. Documentation on how to work with lists can be found here.

You can access the whole comment by issue.comments[0] which returns an object, issue.comments will return a list of objects.

Read

Returned value

The Atlassian account ID of the user who entered the last comment in the issue

Output data type

text

Example output

557068:145e0983-5707-439c-80e4-1160dd57g114