1. An auction application system linking a business information management system and an auction system to automatically post an auction, the auction application system comprising: a memory-based area storing computer data; a processor executing instructions from the memory-based area that configure the processor to: perform the following each time a user logs into the auction application system and specifies a listing criteria of the products: (i) automatically execute a login script of the user that includes a query to the business information management system, the query including-specified listing criteria of the products, (ii) transmit the query to the information management system to retrieve product information based on the user-specified listing criteria, and (iii) transmit to the user an alert including a list of products that are ready for listing after receiving the product information from the information management system; (iv) retrieve a listing theme designated for the user, the listing theme including a placeholder and a customizable element unique to the user; copy the product information for each of a selected quantity of the products into the placeholder to create an auction listing for each product including the customizable element unique to the user; transmit each auction listing to the auction system for automatic posting; and reserve through the auction application system the selected quantity of the products in the business information management system to prevent their disposal.