Sometimes you'll have many people with the same name... Don't judge my
users. You also sometimes need to impersonate the user. Did you know you
can impersonate by pasting the sys_id? I didn't.

Thanks cmclendon for sharing this!

2019-07-21-impersonate.png

Source:
https://community.servicenow.com/community?id=community_article&sys_id=9a177495db44f348f7fca851ca961961