Knowledge base / Intranet Builder / Using the app
Extensions on every page
Application customizers render only in SharePoint's supported Top and Bottom placeholders; they never change SharePoint's own header or page markup. They are registered per site where enabled, never tenant-wide by default.

How it works
- Global navigation: styles, alignment, search box, mega-menu columns, opening on hover.
- Alert banner: styles, urgent-only and non-dismissible alerts.
- Footer: layouts, colors and a back-to-top link. Help launcher: position, style and sections.
- Registrations are verified by Health Dashboard and restored with
Repair-Intranet.ps1 -Resource Extensions. Disabling a module removes its registrations and keeps its content.
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