We use Jira Cloud
I have set up a Custom Field User Picker (single user) and no users appear in the field when I add it to a service desk issue type in the customer portal and view it as a unlicensed user or as the site admin.
I then updated the field to have a filter for Confluence Users and only 6 people showed in the list when there are 128 Confluence users set up.
I then created a test group with 4 people in it and only 1 person was in the drop down.
Please explain how this field works.
I want to use it so that unlicensed users on the customer portal can select their manager that will then be used as the approver for their request in the service desk project.