What is a Merchant Identification Number (MIN)?
A Merchant Identification Number (MIN) is a unique set of numbers or letters and numbers assigned to Merchants. The Merchant ID is typically tied to a system database record that contains all Merchant-specific information regarding that particular Merchant. This is provided by the bank or the Payment Processor.
Electronic Merchant Systems Payment Processing Glossary :
Defining key payment processing and merchant services industry terms to help business owners make better decisions.