Can admins create user fields that are only visible/editable in the admin panel?

[Moin]

So far I had no use case for using custom fields through the API. So I cannot tell you more than what I learned from

Adding non-visible user custom fields to the API

This guide explains how to expose user custom field data through the API without displaying it on a user card. Required user level: Administrator This guide will walk you through the process of making User Custom Field data accessible via the API without displaying it on a user card. This can be useful when you need to programmatically access custom user data while keeping it hidden from general view. Creating a User Custom Field First, create your User Cus…