The source node in most cases contains the sample message as written by the developer. If it looks like a dot-delimitted string such as "form.label.firstname", then the developer has not provided a default message.

Save Save key: price_management.save Price management Price management key: product.price.management Stock management Stock management key: product.stock.management Save Save key: stock_management.save Orders Orders key: user_tab.orders Orders and active baskets Orders and active baskets key: user_tab.orders.and.baskets Overview Overview key: user_tab.overview Date/Payment Date/Payment key: user_tab.table.date Delivery Address Delivery Address key: user_tab.table.delivery.address ERP Order ID ERP Order ID key: user_tab.table.erp_order_id Id Id key: user_tab.table.id Invoice Address Invoice Address key: user_tab.table.invoice.address Products Products key: user_tab.table.products Shop Order ID Shop Order ID key: user_tab.table.shop_order_id Total Total key: user_tab.table.total Total amount Total amount key: user_tab.total_amount