Service
Warning about unsaved changes
When leaving the order view with unsent items, the app prompts you — with different options depending on the order type.
The POS app handles incomplete entries carefully: If you have added items but haven't yet sent them, and want to leave the order view, a confirmation message will appear.

When the warning comes
It appears when closing the order view via the X, when swiping down the window, and when switching to a different workflow via the action menu. In all these cases, the system checks for unsent changes.
The selection in the dialog
For table orders, the dialog asks "Save changes?" and offers "Save," "Discard changes," and "Cancel." For takeaway orders, the dialog is titled "Discard input?" and only offers "Yes" and "No"—you cannot save there.
Discarding is final: The positions that have not yet been sent will be removed without replacement and must be completely re-entered.
Only already submitted, still open entries block the end of the shift. Unsent entries do not prevent the shift from ending.