Magento 2.0.18 is the final 2.0.x release. After March 2018, Magento 2.0.x will no longer receive security patches, quality fixes, or documentation updates. To maintain your site's performance, security, and PCIPayment Card Industry: Refers to debit and credit cards and their associated businesses. compliance, upgrade to the latest version of Magento.
An invoiceA document that provides a detailed description of a purchase, including products purchased, quantity, price, shipping cost, sales tax, and total. is a record of the record of payment for an order. Multiple invoices can be created for a single order, and each can include as many or as few of the purchased products that you specify. You can upload a high-resolution logo for a print-ready PDF invoice, and include the Order ID in the header. To customize the invoice template with your logo, see: Preparing Your Invoice Logo.