POST api/INSaveItem

{
  "IsNew": true,
  "Item": {
    "GL_ACCOUNT_CODE": "sample string 1",
    "CTRL_ACCT_CODE_DESC": "sample string 2",
    "CATEGORY_NAME": "sample string 3",
    "ORIG_HASH": "sample string 4",
    "CustomFieldList": [
      {
        "EntityName": "sample string 1",
        "FieldName": "sample string 2",
        "Value": "sample string 3",
        "Label": "sample string 4",
        "FieldType": "sample string 5"
      },
      {
        "EntityName": "sample string 1",
        "FieldName": "sample string 2",
        "Value": "sample string 3",
        "Label": "sample string 4",
        "FieldType": "sample string 5"
      },
      {
        "EntityName": "sample string 1",
        "FieldName": "sample string 2",
        "Value": "sample string 3",
        "Label": "sample string 4",
        "FieldType": "sample string 5"
      }
    ],
    "ITEM_NUM": "sample string 5",
    "FUND_NUM": 1,
    "CLASS_NUM": 1,
    "CATEGORY_NUM": 1,
    "OBJECT_NUM": 1,
    "CC1_CODE": "sample string 6",
    "CC2_CODE": "sample string 7",
    "CC3_CODE": "sample string 8",
    "ITEM_NAME": "sample string 9",
    "ITEM_DESC": "sample string 10",
    "ITEM_STATUS_CODE": "sample string 11",
    "ITEM_UOM": "sample string 12",
    "FREIGHT_WGHT_FACTOR": 1.0,
    "ITEM_QTY_DECIMALS": 1,
    "ITEM_CAT_CODE": "sample string 13",
    "ITEM_LOCATION": "sample string 14",
    "ITEM_MIN_QUANTITY": 1.0,
    "ITEM_MAX_QUANTITY": 1.0,
    "ITEM_STOCK_FLAG": "sample string 15",
    "PST_HANDLING_CODE": "sample string 16",
    "GST_HANDLING_CODE": "sample string 17",
    "ITEM_CLOSING_DATE": "2025-04-03T21:19:24.5223067-07:00",
    "MARKUP_PCT": 1.0,
    "DISC_MARKUP_PCT": 1.0,
    "RETAIL_PRICE": 1.0,
    "JOBBER_PRICE": 1.0,
    "BUDGET_COST": 1.0,
    "INS_USER": "sample string 18",
    "INS_DATE": "2025-04-03T21:19:24.5223067-07:00",
    "UPD_USER": "sample string 20",
    "UPD_DATE": "2025-04-03T21:19:24.5223067-07:00",
    "TAX_RATE_CODE": "sample string 22",
    "TAX_REBATE_CODE": "sample string 23"
  }
}

{
  "ApiResult": {
    "Success": true,
    "Warnings": true,
    "Description": "sample string 3",
    "WarningMessages": [
      "sample string 1",
      "sample string 2",
      "sample string 3"
    ],
    "NotificationErrorMessages": "sample string 4"
  }
}