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Merchant Identification Number (MID)

  1. Glossary /
  2. Merchant Identification Number (MID) /

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

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

Learn more about merchant identification numbers in this blog post.

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