update_associated_deals_when_account_updated.js

//Validating Account ID
if(account_id != null && account_id.trim() != "")
{
//Getting Account entry
	account_entry = zoho.crm.getRecordById("Accounts", account_id);
//Validating Account response
	if(!account_entry.isEmpty())
	{
//Getting Account value
//Replace your Accounts field API name here if needed
	update_value = account_entry.get("Segment1");
	update_map = Map();
//Replace your Deals field API name here if needed
	update_map.put("Segment1", update_value);
//Getting Deal entries
	deal_entries = zoho.crm.getRelatedRecords("Deals", "Accounts", account_id);
//Validating Deal response
	if(!deal_entries.isEmpty() && deal_entries.size() > 0)
	{
		for each deal in deal_entries
		{
//Getting Deal ID
			deal_id = deal.get("id");
//Validating Deal ID
			if(deal_id != null)
			{
				update_deal = zoho.crm.updateRecord("Deals", deal_id.toLong(), update_map);
//Validating Deal response
				if(!update_deal.isEmpty() && update_deal.containKey("status") && update_deal.get("status") == "error")
				{
				info "Error in updating Deal: "+update_deal;
				}
				else 
				{
				info "Deal updated successfully";
				}
			}
			else 
				{
				info "Deal ID is empty";
				}
		}
	}
	else 
				{
				info "Invalid Deal response";
				}
	}
	else 
				{
				info "Invalid Account response";
				}
}
				else 
				{
				info "Invalid Account ID passed";
				}