Assuming balancedue is required, the following result was found.
v_BooksOrgID = organization.get("organization_id"); v_InvoiceRef = invoice.get("invoice_number"); v_BalanceDue = ifnull(invoice.get("balance"),0.0); // // search payments m_SearchCriteria = Map(); m_SearchCriteria.put("customer_id",v_CustomerID);...