Principal Program Manager at Microsoft Power CAT Team | Power Platform Content Creator
This tutorial video is a step-by-step guide on how to customize Modern SharePoint List / Microsoft List Forms using JSON Formatting, Column & List Validations, designing form header & footer using JSON, adding columns in Sections (Form Body) and more.
Video showcases the power within SharePoint itself (In-product) to customize forms, reorder columns, show and hide columns with conditional formulas, add column and list level validation formulas, create sections in form body, add custom headers and footers using JSON form formatting, add a notification approval workflow using power automate, make columns read-only (in form) by conditional formulas checking logged in user role and much more.
Configure the list form
https://docs.microsoft.com/en-us/sharepoint/dev/declarative-customization/list-form-configuration
Show or hide columns in a list or library form
Creating custom list templates
https://learn.microsoft.com/en-us/sharepoint/lists-custom-template
PnP Samples:
https://pnp.github.io/List-Formatting/formsamples/