Update a Specific Inventory Item Header

{
  "CithRowid": "AAAXwAAAIAAJ8jOAAP",
  "CithCompCode": "001",
  "CithCompName": "CMiC Construction Inc",
  "CithItemCode": "1261",
  "CithItemName": "Safety Glasses - Clear",
  "CithItemTypeCode": "MA",
  "CithItemTypeName": "Construction Materials",
  "CithDefaultLocCode": null,
  "CithDefaultLocName": null,
  "CithCostMethCode": "AVG",
  "CithLotCtrlFlag": "N",
  "CithSerialFlag": "N",
  "CithUsageCode": "N",
  "CithCostUpdateLevelCode": "I",
  "CithInvAccCode": "17010",
  "CithRevAccCode": "40015",
  "CithWriAccCode": "50700",
  "CithAdjAccCode": "50710",
  "CithVarAccCode": "50720",
  "CithSuspAccCode": "17040",
  "CithMinOrderQty": 10,
  "CithStdOrderQty": null,
  "CithMaxOrderQty": null,
  "CithMinOnhandQty": null,
  "CithMaxOnhandQty": null,
  "CithStdOnhandQty": null,
  "CithMarketPriceAmt": 5.63,
  "CithSellPriceAmt": 100,
  "CithBuybackPriceAmt": 100,
  "CithRestockPriceAmt": null,
  "CithCrtDate": "2023-01-25T04:48:55Z",
  "CithCrtUserCode": "CMICUSER",
  "CithLastModifyDate": null,
  "CithLastModifyUserCode": null,
  "CithLastCstbchOraseq": null,
  "CithDeprExpAccCode": null,
  "CithAccumDeprAccCode": null,
  "CithTax1Code": null,
  "CithTax2Code": null,
  "CithTax3Code": null,
  "CithSellPriceOrPctCode": "C",
  "CithBbPriceOrPctCode": "C",
  "CithSoldAtCostAccCode": "50600",
  "CithSalesTax1Code": null,
  "CithSalesTax2Code": null,
  "CithSalesTax3Code": null,
  "CithCmpFlag": "N",
  "CithRtrnFlag": "N",
  "CithPartialDasmblFlag": "N",
  "CithAffilRevAccCode": "40015",
  "CithCustRevAccCode": "40015",
  "CithAllowNegQtyFlag": "Y",
  "CithProdFlag": "N",
  "CithEmCostComponCode": null,
  "CithCreditJcCatCode": null,
  "CithCreditJcCatName": null,
  "CithInventoryItemCode": null,
  "CithInventoryTypeCode": null,
  "CithSalesProductFlag": "N",
  "CithMsdscOraseq": null,
  "CithMsAvailableFlag": "N",
  "CithMszpcOraseq": null,
  "CithMsptOraseq": null,
  "CithTotalAcPct": null,
  "CithAutoBuildCmpFlag": "N",
  "CithIuCreateDate": "2023-01-25T04:48:55Z",
  "CithIuCreateUser": "CMICUSER",
  "CithIuUpdateDate": null,
  "CithIuUpdateUser": null,
  "DiscriminatorCode": null,
  "CithTenantId": "VF389BTEQP11127",
  "CithVUuid": "F31049383F8A279DE05316821FAC75DB",
  "links": [
    {
      "rel": "self",
      "href": "http://mobtest.cmiccloudr12.com:80/cmictestrti/ci-rest-api/rest/1/ciitemhdr/F31049383F8A279DE05316821FAC75DB",
      "name": "ciitemhdr",
      "kind": "item"
    },
    {
      "rel": "canonical",
      "href": "http://mobtest.cmiccloudr12.com:80/cmictestrti/ci-rest-api/rest/1/ciitemhdr/F31049383F8A279DE05316821FAC75DB",
      "name": "ciitemhdr",
      "kind": "item"
    }
  ]
}