Multiple choice technology

What is an External CM Number

  1. Credit card Number

  2. Credit card PIN

  3. Customer account number

  4. Customer Bill Number

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A Correct answer
Explanation

An External CM (Card Management) Number refers to the credit card number itself - the primary account number that identifies the card account in external systems. It is distinct from a PIN (security code), customer account number (internal identifier), or bill number (transaction reference).