Drop shipping is a supply chain management technique in which the retailer does not keep goods in stock, but instead transfers customer orders and shipment details to either the manufacturer or a wholesaler, who then ships the goods directly to the customer. wikipedia.org

Inventory means a list compiled for some formal purpose, such as the details of an estate going to probate, or the contents of a house let furnished. wikipedia.org

Shopify is an e-commerce platform that allows individuals and businesses to create online stores. The Shopify platform includes a content management system that allows users to manage inventory, edit HTML and CSS code, create coupon and discount codes, and accept online payments online with... wikipedia.org

AliExpress is an ecommerce platform. wikipedia.org

A purchase order (PO) is a commercial document issued by a buyer to a seller, indicating types, quantities, and agreed prices for products or services the seller will provide to the buyer. wikipedia.org

English is a West Germanic language that was first spoken in early medieval England and is now a global lingua franca. 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

Microsoft Excel is a proprietary commercial spreadsheet application written and distributed by Microsoft for Microsoft Windows and Mac OS X. It features calculation, graphing tools, pivot tables, and a macro programming language called Visual Basic for Applications. wikipedia.org

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

A data entry clerk, sometimes called a typist, is a member of staff employed to type data into a database using a keyboard. The keyboards used can often have specialist keys and multiple colours to help them in the task and speed up the work. wikipedia.org