ATM ID, also known as Automatic Teller Machine Identifier, refers to the unique identification number assigned to each ATM machine. Some synonyms for ATM ID include ATM reference number, machine identifier, identification code, or machine identification number. These terms are often used interchangeably to identify and track the specific ATM machine being accessed by a user. Having an ATM ID is crucial for financial institutions as it allows them to monitor withdrawals, deposits, and other transactions made at the machine. In addition, it helps customers to quickly identify the machine they used for any ATM-related queries or issues. Overall, the importance of ATM ID cannot be overstated as it is a key aspect of modern banking systems.