What is a functional bug?

During software testing, bugs are discovered. This is made manifest when the actual results are compared with the expected results. When you take into account the testing types classification, every bug discovered at this stage is broken down into various kinds based on the origin of the type. However, bugs are generally broken down into functional bugs and non-functional bugs. It is very important to know the differences between the two and others.

A functional bug as the name implies is an error that has a functional relationship to software. A functional bug plays a part in the malfunctioning of a software or application.