Management of Tarnawski Ltd. has requested a review of internal controls over cash payments for parts and supplies purchased at manufacturing plants. Cash payments are centrally processed at head office based on vouchers prepared and approved at manufacturing plants. Each manufacturing plant purchases parts and supplies for its own production needs. As a preliminary step in planning the engagement, the plant managers have been asked to provide a written description of their respective plants procedures for processing payment vouchers for parts and supplies. The following are nine excerpts from one of the written descriptions: 1. The purchasing department acts on purchase requisitions issued by the stores department (which houses supplies). 2. Orders are placed on pre-numbered purchase order forms. 3. A complete purchase order copy is sent to the receiving department. 4. When goods are received, the receiving department logs the shipment in by stamping order received on its purchase order copy and forwards the annotated order to the accounts payable department. 5. Purchase orders, purchase order copies that have been annotated by the receiving department, and supplier invoices are matched by the accounts payable department. 6. Clerical accuracy of supplier invoices is checked by the accounts payable department. 7. A pre-numbered payment voucher is prepared and forwarded, along with supporting documentation, to the plant controller, who reviews and approves the voucher. 8. Supporting documents are returned to the accounts payable department for filing, and approved payment vouchers are forwarded to head office for payment. 9. A report listing cheques issued by head office is received and promptly filed by the accounts payable department. Which of the following are control strengths with the payables process?

Orders are placed on pre-numbered purchase order forms.

A complete purchase order copy is sent to the receiving department.

The receiving department logs the shipment in by stamping order received on its purchase order copy and forwards the annotated order to the accounts payable department.

Purchase orders, purchase order copies that act as a receiving report, and supplier invoices are matched by the accounts payable department.

Clerical accuracy of supplier invoices is checked by the accounts payable department.

Supporting documents are returned to the accounts payable department for filing, and approved payment vouchers are forwarded to head office for payment.

A report listing cheques issued by head office is received and promptly filed by the accounts payable department.