payerAuthEnrollReply_acsReferenceNumber {#payer-auth-enroll-reply-acs-reference-num}
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Unique identifier assigned by EMVCo upon testing and approval.  
This field is used with 3-D Secure 2.0.

Specifications {#payer-auth-enroll-reply-acs-reference-num_d110e23}
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* **Data Type:** String
* **Data Length:** 32

Mapping Information {#payer-auth-enroll-reply-acs-reference-num_d110e42}
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* **REST API Field:** consumerAuthenticationInformation.acsReferenceNumber
* **SCMP API Fields:**
  * acs_reference_number
  * pa_acs_reference_number
* **Simple Order API Fields:**
  * ccAuthService_acsReferenceNumber
* payerAuthEnrollReply_acsReferenceNumber