The sales journal is a special type of journal used by organizations to record their sales transactions. It provides information about the number of sales made to important customers, allowing managers and directors to identify loyal customers and form strategies to retain them. The sales journal entries are recorded in a specified format with columns for account to be debited, date, sale invoice number, accounts receivable, inventory and cost of goods sold, and post. These entries provide legal evidence of the transactions along with the date and narration. They also assist in updating ledger books and providing important information to internal users such as managers and directors.