• Devices without a store of their own: choose the store after login.
• Paid: send or print the receipt at once.
• Service: suggested parts per job type, show customer codes, closed days in the ready-date calendar, and the store's own staff message.
• Goods receipt: the next scan confirms the line, with undo; hand terminals scan without tapping the field.
• Best-selling products: turnover after discount.
• Default service warehouse always selectable; required fields marked the same everywhere.