Which of the following procedures most likely would not be an internal control designed to reduce the risk of errors in the billing process?

Choice "d" is correct. Reconciling control totals for sales invoices with the accounts receivable

subsidiary ledger is not an effective control related to the billing process, since errors that exist in the

preparation of invoices would likely carry through to accounts receivable.

Choice "a" is incorrect. Comparing shipping totals with sales invoice totals is an effective control to

reduce billing errors.

Choice "b" is incorrect. Computer controls related to pricing and mathematical accuracy will reduce

billing errors.

Choice "c" is incorrect. Matching shipping documents with approved sales orders ensures that

invoices are properly authorized and only goods ordered have been shipped.