Multi-stage maintenance request workflow with four approval phases: initial submission by requester, direct manager review, maintenance department head evaluation, and final confirmation by maintenance administration manager. The process includes conditional routing based on manager availability and mandatory rejection reason documentation at each decision point. This workflow ensures proper authorization hierarchy, accountability, and traceability throughout the maintenance request lifecycle. Fork and customize this diagram on Diagrams.so to adapt it to your organization's approval structure, role assignments, or escalation rules. The design emphasizes mandatory documentation on rejections to maintain compliance and audit trails.