Order processing Order processing is a key element of Order fulfillment. Order processing operations or facilities are commonly called "distribution centers".

Customer support is a range of customer services to assist customers in making cost effective and correct use of a product. It includes assistance in planning, installation, training, trouble shooting, maintenance, upgrading, and disposal of a product. wikipedia.org

A data sheet is a document summarizing the performance and other technical characteristics of a product, machine, component, material, subsystem, or software in sufficient detail to be used by a design engineer to integrate the component into a system. wikipedia.org

Accounts payable is a file or account sub-ledger that records amounts that a person or company owes to suppliers, but has not paid yet (a form of debt), sometimes referred as trade payables. wikipedia.org

Bookkeeping is the recording of financial transactions. Transactions include sales, purchases, income, receipts and payments by an individual or organization. Bookkeeping is usually performed by a bookkeeper. wikipedia.org

Office administration is a set of day-to-day activities related to financial planning, billing and recordkeeping, personnel, and physical distribution and logistics, within an organization. wikipedia.org