Handling an order

{
  "schemaVersion": 1,
  "type": "flow",
  "title": "Handling an order",
  "source": "Shop operations handbook",
  "width": 1320,
  "height": 420,
  "flow": {
    "nodes": [
      {
        "id": "received",
        "label": "Order received",
        "kind": "start"
      },
      {
        "id": "paid",
        "label": "Payment cleared?",
        "kind": "decision"
      },
      {
        "id": "reserve",
        "label": "Reserve stock"
      },
      {
        "id": "stock",
        "label": "Inventory",
        "kind": "store"
      },
      {
        "id": "available",
        "label": "In stock?",
        "kind": "decision"
      },
      {
        "id": "backorder",
        "label": "Backorder",
        "sublabel": "supplier",
        "kind": "subprocess"
      },
      {
        "id": "ship",
        "label": "Ship parcel"
      },
      {
        "id": "notify",
        "label": "Notify customer",
        "kind": "io"
      },
      {
        "id": "delivered",
        "label": "Delivered",
        "kind": "end"
      },
      {
        "id": "cancelled",
        "label": "Cancelled",
        "kind": "end"
      }
    ],
    "edges": [
      {
        "from": "received",
        "to": "paid"
      },
      {
        "from": "paid",
        "to": "reserve",
        "label": "yes"
      },
      {
        "from": "paid",
        "to": "notify",
        "label": "no"
      },
      {
        "from": "reserve",
        "to": "stock",
        "label": "update",
        "dash": "dotted"
      },
      {
        "from": "reserve",
        "to": "available"
      },
      {
        "from": "available",
        "to": "ship",
        "label": "yes"
      },
      {
        "from": "available",
        "to": "backorder",
        "label": "no"
      },
      {
        "from": "backorder",
        "to": "reserve",
        "label": "restocked",
        "dash": "dashed"
      },
      {
        "from": "ship",
        "to": "delivered"
      },
      {
        "from": "notify",
        "to": "cancelled"
      }
    ],
    "mainPath": [
      "received",
      "paid",
      "reserve",
      "available",
      "ship",
      "delivered"
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