Update Zoho Subscription Invoice

Hello All,

Problem Statement:- I am not able to update the Invoice which i have created inside the zoho subscription by the api call, can someone help me for the same, I am also sharing the Reference code and error

...........Update Code

invoiceID = invoice.get("invoice_id");
invoicedate = invoice.get("invoice_date").toDate();
organizationID = organization.get("organization_id");
resvp = zoho.subscriptions.retrieve("invoices",organizationID,invoiceID,"zohosubscrition");
invoiceid = resvp.get("invoice").getJSON("invoice_id");
mp = Map();
mp.put("item_id",invoiceid);
itemlist = List();
itemdata = resvp.get("invoice").getJSON("invoice_items");
for each rec in itemdata
{
itemdata = Map();
itemdata.put("item_id",rec.get("item_id"));
itemdata.put("product_id",rec.get("product_id"));
itemdata.put("price",900);
itemdata.put("quantity",1);
itemdata.put("item_total",900);
itemlist.add(itemdata);
}
mp.put("invoice_items",itemlist);
mp.put("reason","we are testing this by the api call");
resvp1 = zoho.subscriptions.update("invoices",organizationID,invoiceID,mp,"zohosubscrition");
info resvp1;

Error:- {"code":102028,"message":"Items of this invoice cannot be modified."}

Please check the same and tell how can we update the invoice which we have created inside the zoho Subscription,

Apart from this is there anything information required please let me know.

Thank You

Piyush Goyal

France ZUGs

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