Hi,
the setting is a next-gen Jira Service Management project where I created a field of type "People" and set it onto "Customer request form" (tested in Description fields and Context fields also).
As soon as I want to update it through automation it is not offered as an option.

The field is called "Close User" and all of the intention is to set the person doing the transition into this field by:

TIA! Birgit