extensive composition

[fefe]

Please, help to translate.

Phrase is used in the following sentence:

Costs for modifications of the previously agreed execution of an order for extensive composition as well as for transmission and delivery of data are at the expense of the Client.

Thanks in advance

[Dr. Jekyll]

Расходы за изменения в предварительно согласованном заказе на сбор/подготовку массива данных, а также его передачу и доставку относятся на счет Заказчика.