How to create a dynamic asset upload path from field data in Craft CMS

Ryan shows how you can use Twig code in your asset upload path settings field to create dynamic subpaths using related entries.

Craft 3, Craft 4

Craft CMS Twig

Some stuff to help you along during the lesson:

How to enforce subfolder names for uploaded assets in hierarchically related sections
Twig & Shortcut Syntax in the Control Panel