1. The official, correct, or established procedures and routes through which matters should be handled or communicated within an organization or system
You must go through proper channels to file a complaint.
Você deve seguir os canais apropriados para apresentar uma reclamação.
2. The correct organizational hierarchy or established procedures for handling requests, decisions, or information
The proposal should be submitted through proper channels rather than directly to the manager.
A proposta deve ser submetida através dos canais apropriados em vez de diretamente ao gerente.