Management of invoices and receipts plays a crucial role for any organization. An invoice is a document that indicates the goods/services that a company has provided to a customer. Invoices also itemize the goods or services sold and may include discounts, taxes, and other fees. A receipt is a document that proves that a customer has paid for the goods/services that they have received. Gridlex Sky allows users to manage their invoices and business receipts in a single place. It can help businesses to record all their sales and receipts.