This certification aims to cultivate engineers with proficiency in operating COE systems. It is intended for technical support engineers, after-sales engineers, and rental engineers who have passed Level 1 certification. Candidates must master the basic parameter configuration, project scheme configuration, fundamental system operations, and the principles of various high-end modules of the COEX system. Upon certification, engineers will be capable of providing professional technical support and solution design services for projects utilizing the COEX system.