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.

e-commerce e-commerce key: breadcrumb.ecommerce Download prices Download prices key: import_export.download_price.button Download stock Download stock key: import_export.download_stock.button Search Search key: import_export.search.button Upload file Upload file key: import_export.upload.file Select a CSV file to import Select a CSV file to import key: import_export.upload.info Note: It might take some time until the CSV file has been imported. Note: It might take some time until the CSV file has been imported. key: import_export.upload.note Upload prices Upload prices key: import_export.upload_price.button Upload new price list Upload new price list key: import_export.upload_price.title Upload stock Upload stock key: import_export.upload_stock.button Upload new stock list Upload new stock list key: import_export.upload_stock.title Price management Price management key: price_and_stock.price Shipping costs management Shipping costs management key: price_and_stock.shipping_costs Stock management Stock management key: price_and_stock.stock Price and stock management Price and stock management key: price_and_stock.title Add price Add price key: price_management.add_price Base price Base price key: price_management.base_price Customer group Customer group key: price_management.customer_group Delete price Delete price key: price_management.delete_price.button Offer price Offer price key: price_management.offer_price Save Save key: price_management.save SKU SKU key: price_management.sku Save Save key: shipping.save Country Country key: shipping.table.country Currency Currency key: shipping.table.currency Shipping cost Shipping cost key: shipping.table.shipping_cost Shipping method Shipping method key: shipping.table.shipping_method State State key: shipping.table.state Manage shipping costs Manage shipping costs key: shipping.table.title Value of goods Value of goods key: shipping.table.value ZIP ZIP key: shipping.table.zip Add Add key: shipping_management.add_shipping Delete Delete key: shipping_management.delete_shippment.button On stock On stock key: stock_management.on_stock Save Save key: stock_management.save SKU SKU key: stock_management.sku Stock text Stock text key: stock_management.stock_text