While ABA can be used in a natural setting (a playground, for example), it is not intended to build emotional or social skills. So, for example, while ABA might teach a child to shake hands or greet another person with a handshake, it won't help that child to feel an emotional connection with another person.
Definition of an invoice. An invoice is a document that a business issues to its customers, asking the customers to pay for the goods or services that the business has supplied to them. Invoices can be issued either before or after the goods or services are supplied.
A/R Invoice. The invoice is a legally binding document. When an invoice is received, the posting is made to the related customer accounts in the accounting system. If a delivery did not precede the invoice and you sell the warehouse items, inventory quantities are also updated accordingly when you issue the invoice.