Create Quote from Deal. Unable to copy Data in Custom Filed in Quote Product Details (Subform). Function work for all other Fields but Custom Filed is Blank

I am Creating Quote from Deal using Deluge Code in Button Function.

The Quote is getting created, there is no problem, all fields are getting populated.

my problem:

I have a custom Filed in the Quote page under Product Details (Subform). This custom Filed is not getting polpulated, it is always blank (Null)

Custom Field Name: Cash_Received_From_Owner_1

Below is my code:

potDetails = zoho.crm.getRecordById("Deals",potId.toLong());

quotesubject = ifnull(potDetails.get("Deal_Name"),"");

contact = ifnull(potDetails.get("Contact_Name").get("id"),"");

account = ifnull(potDetails.get("Account_Name").get("id"),"");

description = ifnull(potDetails.get("Description"),"");

RelatedProducts = zoho.crm.getRelatedRecords("Products","Deals",potId.toLong());

product_items = List();

sub = 0.0;

for each product in RelatedProducts

{

proid = product.get("id");

proname = product.get("Product_Name");

productDesc = ifnull(product.get("Description"),"");

quantity = 1;

price = ifnull(product.get("Unit_Price"),"0.0").toDecimal();

listprice = price * quantity;

CashReceived = ifnull(product.get("Cash_Received_From_Owner"),"0.0").toDecimal();

lineitem = Map();

lineitem.put("product",{"name":proname,"id":proid});

lineitem.put("product_description",productDesc);

lineitem.put("quantity",quantity);

lineitem.put("net_total",listprice);

lineitem.put("total",listprice);

lineitem.put("Cash_Received_From_Owner_1",CashReceived.todecimal());

lineitem.put("Discount",CashReceived);

lineitem.put("list_price",listprice);

sub = sub + listprice;

product_items.add(lineitem);

}

paramap = Map();

paramap.put("Product_Details",product_items);

paramap.put("Subject",quotesubject);

paramap.put("Contact_Name",contact);

paramap.put("Account_Name",account);

paramap.put("Deal_Name",potId.toLong());

paramap.put("Description",description);

createResp = zoho.crm.createRecord("Quotes",paramap);

newid = createResp.get("id");

return "Success - Agreement Created";