What is the origin of the idiom "go through channels" and when to use it?

The idiom "go through channels" originates from military and bureaucratic settings, where it means to follow the established hierarchical or procedural steps to address an issue or obtain permission. It emphasizes the importance of adhering to proper channels and protocols in order to achieve a specific goal or resolve a problem. This phrase is often used to emphasize the need for formal, authorized processes rather than taking a more direct or informal approach.