A breadcrumb is the path to the current page that displays immediately below the top navigation. Users can click on the links in the breadcrumb to get back to a specific section of the site.
Breadcrumbs are initially created when a Subsection is created and is set by the field called "Friendly Name"
Each Subsection of the site appears in the Breadcrumb as the user navigates to the home or other pages of the Subsection. If the Subsection is renamed, the breadcrumb does not automatically update. However, the breadcrumb can be edited in the _props file > page parameters of the Subsection.
When a new page is created, the Page Setup fields include Page Title and that is the name that appears in the breadcrumbs.
Updating a Page Breadcrumb
To change the breadcrumb of an existing page, edit the Breadcrumb field in the Page Parameters (Properties > Parameters).