Function to set landed cost in item receipt

Script used to add landed cost values to the item receipt lines.

let irRecord = record.load({
    type: record.Type.ITEM_RECEIPT,
    id: irRecId
});
let landedCostSubRecord = irRecord.getSublistSubrecord({
    sublistId: 'item',
    fieldId: 'landedcost',
    line: irLineId
});
for (let j = 0; j < landedCostRecValues.length; j++) {
landedCostSubRecord.setSublistValue({
    sublistId: 'landedcostdata',
    fieldId: 'costcategory',
    line: IRline,
    value: landedCostRecValues[j].Cost_category
});
landedCostSubRecord.setSublistValue({
    sublistId: 'landedcostdata',
    fieldId: 'amount',
    line: IRline,
    value: amount
});
}
let recId = irRecord.save({
    enableSourcing: true,
    ignoreMandatoryFields: true
});