The Sugar Act was part of a larger plan to raise revenue in the colonies, which also included the Stamp Act of 1765. These acts were seen by the colonists as a violation of their rights as British subjects, as they were not directly represented in Parliament and therefore had no say in the taxes that were imposed on them.
The resistance to the Sugar Act and other revenue-raising measures led to increased tensions between the colonies and Great Britain, which eventually culminated in the American Revolution.