A confirmation number is a unique identifier assigned to a specific transaction or booking. It is commonly used in various industries, such as travel, hospitality, and online shopping, to help customers track their orders or reservations. This number ensures that both the customer and the service provider can reference the same transaction easily. When you make a purchase or reservation, you typically receive a confirmation number via email or text message. This number is important for verifying your order, making changes, or resolving any issues. Always keep your confirmation number handy, as it may be required for customer service inquiries or check-ins at places like hotels or airlines.