Item update VAT on creation

Item update VAT on creation

Hi all,

I'm looking to auto update the VAT field upon creation of a new item, I've written the following Custom Function, however it doesn't appear to work...

Any ideas appreciated!

  1. itemID = item.get("item_id");
    organizationID = organization.get("organization_id");
    itemMap = Map();
    item.update("tax_name","Standard Rate");
    item.update("tax_percentage","20.00");
    item.update("tax_type","ItemAmount");
    item.update("taxable","true");
    item.update("tax_name_formatted","Standard Rate [20%]");
    result = zoho.books.updateRecord("items",organizationID,itemID,itemMap,"zbooks");