payerAuthValidateReply_ threeDSServerTransactionID {#payer-auth-validate-reply-three-ds-server-txn-id}
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Unique transaction identifier assigned by the 3-D Secure server to identify a single transaction.

Specifications {#payer-auth-validate-reply-three-ds-server-txn-id_d553e21}
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* **Data Type:** String
* **Data Length:** 36

Mapping Information {#payer-auth-validate-reply-three-ds-server-txn-id_d553e40}
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* **REST API Field:** consumerAuthenticationInformation. threeDSServerTransactionId
* **SCMP API Field:** pa_three_ds_server_transaction_id
* **Simple Order API Fields:**
  * ccAuthService_threeDSServerTransactionID
  * payerAuthEnrollReply_threeDSServerTransactionID
* payerAuthValidateReply_threeDSServerTransactionID