{
  "illustrative": true,
  "article": "/manufacturing/wms-fifo-fefo-batch-selection/",
  "assumptions": [
    "One plant, owner, item, version and unit; no overlapping stock rows.",
    "Split picking is allowed; full-day means 24 hours.",
    "FIFO uses original receipt time; this is not a vendor API or financial costing rule.",
    "Expiration is exclusive, minimum remaining duration accepts equality."
  ],
  "snapshotAt": "2026-10-19T08:00:00+08:00",
  "unit": "piece",
  "ruleVersion": "RULE-F/1",
  "demand": {
    "id": "SO-F70",
    "quantity": 70,
    "arrivalAt": "2026-10-22T08:00:00+08:00",
    "minimumRemainingDays": 7
  },
  "stock": [
    {
      "id": "F0",
      "receivedAt": "2026-09-29T08:00:00+08:00",
      "expiresAt": "2026-10-21T08:00:00+08:00",
      "quantity": 20,
      "reservedOther": 0,
      "qualityReleased": true
    },
    {
      "id": "F1",
      "receivedAt": "2026-10-01T08:00:00+08:00",
      "expiresAt": "2026-11-02T08:00:00+08:00",
      "quantity": 60,
      "reservedOther": 10,
      "qualityReleased": true
    },
    {
      "id": "F2",
      "receivedAt": "2026-10-10T08:00:00+08:00",
      "expiresAt": "2026-10-30T08:00:00+08:00",
      "quantity": 40,
      "reservedOther": 0,
      "qualityReleased": true
    },
    {
      "id": "F3",
      "receivedAt": "2026-10-05T08:00:00+08:00",
      "expiresAt": "2026-10-29T08:00:00+08:00",
      "quantity": 30,
      "reservedOther": 0,
      "qualityReleased": false
    },
    {
      "id": "F4",
      "receivedAt": "2026-10-12T08:00:00+08:00",
      "expiresAt": null,
      "quantity": 10,
      "reservedOther": 0,
      "qualityReleased": true
    }
  ],
  "delayedArrivalAt": "2026-10-24T08:00:00+08:00",
  "shortPickReceipts": [
    {
      "eventId": "PICK-F2",
      "lot": "F2",
      "quantity": 38
    },
    {
      "eventId": "PICK-F1",
      "lot": "F1",
      "quantity": 30
    },
    {
      "eventId": "PICK-F2",
      "lot": "F2",
      "quantity": 38
    }
  ],
  "move": {
    "lot": "F2",
    "movedAt": "2026-10-19T09:00:00+08:00",
    "originalReceiptAt": "2026-10-10T08:00:00+08:00",
    "expiresAt": "2026-10-30T08:00:00+08:00"
  },
  "expected": {
    "physical": 160,
    "candidate": 90,
    "thresholdAt": "2026-10-29T08:00:00+08:00",
    "fifo": [
      {
        "lot": "F1",
        "quantity": 50
      },
      {
        "lot": "F2",
        "quantity": 20
      }
    ],
    "fefo": [
      {
        "lot": "F2",
        "quantity": 40
      },
      {
        "lot": "F1",
        "quantity": 30
      }
    ],
    "excluded": {
      "F0": [
        "insufficient_remaining"
      ],
      "F3": [
        "quality_hold"
      ],
      "F4": [
        "expiry_unknown"
      ]
    },
    "delayedCandidate": 50,
    "delayedShortage": 20,
    "picked": 68,
    "incomplete": 2
  }
}