IT help desk ticket process flowchart template

flowchart TD
    A[User reports an issue] --> B[Service desk logs and prioritizes]
    B --> C{Tier 1 can resolve}
    C -->|Yes| D[Tier 1 fixes it]
    C -->|No| E[Escalate to tier 2]
    E --> F[Tier 2 investigates]
    F --> G{Vendor support needed}
    G -->|Yes| H[Open a vendor case]
    H --> I[Apply the fix]
    G -->|No| I
    D --> J[Ask the user to verify]
    I --> J
    J --> K{User confirms it works}
    K -->|No| E
    K -->|Yes| L[Close the ticket]
    L --> M{Major incident}
    M -->|Yes| N[Review and update knowledge base]

Draw an IT help desk ticket flowchart with Mermaid flowchart TD syntax. The user reports an issue and the service desk logs and prioritizes it. If tier 1 can resolve it, tier 1 fixes it; otherwise escalate to tier 2, which investigates. If vendor support is needed, open a vendor case, then apply the fix. Ask the user to verify: if it does not work, escalate again; if it works, close the ticket. A major incident also gets a review and a knowledge base update. Use diamonds for decisions and no parentheses in node text. Output only the mermaid code block.