According to the red-shelf textbook, modules are described as programming information that composes all the financial data inside the QBO software. So what is a module in QBO: they are simply queries that interconnect and compile digital information converting them into financial data to run different features including sales, invoices, bills, reports, etc. Modules are extremely important because they use programmed hardware to generate financial reports onto QBO software. This saves the user a lot of time by generating reports and interpreting results accurately. The user doesn't have to compile data manually to create financial statements. Modules help export customer and vendor data as well as transactions and issued invoices. The following source documents according to QBO modules are organized by vendor, customer, employee, and other members.

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