+ $sql = "SELECT trans_type_from, trans_no_from FROM ".TB_PREF."cust_allocations
+ WHERE trans_type_to=".ST_SALESINVOICE." AND trans_no_to=".db_escape($invoice_no);
+ $result = db_query($sql, "could not retrieve customer allocation");
+ $row = db_fetch($result);
+
+ if ($row === false)
+ hyperlink_params("$path_to_root/sales/customer_payments.php", _("Entry &customer payment for this invoice"),
+ "SInvoice=".$invoice_no);
+