Accounting 26th Edition by Carl Warren ,Jim Reeve ,Jonathan Duchac

Exercise 19

Accounts receivable and accounts payable
A subsidiary ledger is used for accounts receivable and accounts payable. Thus, transactions that are made "on account" are posted to the individual customer or creditor accounts.
a. Why do companies use subsidiary ledgers for accounts payable and accounts receivable
b. Identify another account that could benefit from using a subsidiary ledger.