Four-phase maintenance request workflow with sequential approvals from direct manager, maintenance department head, and final confirmation by maintenance administration manager. Requests flow from initial submission through manager review, maintenance assessment, and formal completion, with rejection paths at each stage requiring documented reasons. This structured approval process ensures accountability, proper documentation, and clear escalation paths for maintenance operations. Fork this diagram on Diagrams.so to customize approval roles, add SLA timelines, or integrate with your maintenance management system. The mandatory rejection documentation requirement prevents lost context and supports audit compliance.