Outsourcing can be called the combined creation of the modern era of global trade, improving geopolitical relations and worldwide internet connectivity that enables collaborations and integrations across cities, countries and even continents.
During the initial years, outsourcing was only used for basic processes such as data entry and payroll processing. However, as connectivity expanded and the technological skills of BPO companies advanced, businesses started outsourcing more and more processes/services. Today, you can outsource many backend processes and financial/operation functions such as invoice management, accounts payable processing, survey reporting, and utility bill management to name a few.
This has driven innovation and created new business process outsourcing trends and practices.