Ribbon (command bar)

The ribbon — now more commonly called the command bar — is the row of action buttons at the top of every model-driven Power Apps page (Save, New, Delete, Email, plus custom actions). Each table has separate command bars per context: main form, list view, subgrid, associated view. Customisation today happens in the modern command designer in the maker portal, replacing the older XML-based ribbon configuration. Commands can run JavaScript functions, Power Fx formulas, Power Automate flows, or open Power Apps. Visibility and enabled rules expressed in Power Fx control when commands appear and when they're active. Commands can be app-scoped — visible in one model-driven app but not another, even on the same table.