04 · Page layouts and Lightning record pages

Two systems control what a record looks like, and they overlap just enough to confuse everyone.

Layouts own the fields, Lightning pages own the page

Page layouts decide which fields and related lists exist; Lightning record pages decide where components sit around them. Change the wrong one and nothing happens — now you know why.

Dynamic Forms changes the deal

With Dynamic Forms, fields move onto the Lightning page itself with per-field visibility rules. New builds should start there.

Practice in your org

• Open your Developer Edition org and follow along step by step
• Change one thing at a time and note what happens
• When something breaks, read the error before searching for it