Which input control check would detect a payment made to a nonexistent vendor?

Which of the following situations is not a segregation of duties violation?

If a customer submits a written purchase order, there is no need to prepare a sales order.

The purpose of the purchase requisition is to

Attestation services are performed by

Collusion among employees in the commission of a fraud is difficult to prevent but easy to detect.

A ledger is organized by

The cash receipts journal is a special journal.

The bank reconciliation uncovered a transposition error in the books. This is an example of a

Defalcation is another word for financial fraud.