Merchant Identification Number (MID)

By September 17, 2018Industry Terms

The merchant identification number (MID) is a unique alphanumeric identifier assigned to a merchant account. The MID is used by the various stakeholders to identify the account throughout the course of processing activities.

When the processor approves the merchant account application, the merchant will typically receive a VAR (value-added reseller) sheet that lists the MID.

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