Overview

After the merchant sends a transaction to Nuvei, Nuvei communicates with the customer’s bank to transfer the deposit from the customer’s account to the merchant’s account. When Nuvei receives a response from the bank, Nuvei notifies the merchant of the result of the deposit via a callback, also known as a Direct Merchant Notification (DMN) or a webhook.

DMNs are useful for determining when an error occurred on the customer’s side by verifying that the Nuvei server completed the transaction. There might be cases when the response coming through the Success or Error page is lost. When this occurs, the customer is not aware of the transaction outcome. As the merchant receives the DMN directly from Nuvei, the merchant can contact the customer to notify them of the status of the transaction.

Deposit DMN Information

• Transaction Parameters: The parameters of the transaction originally sent to the Cashier and the parameters of the outcome of the PPP’s work (including the response checksum).
• Payment Parameters: The unprotected payment method information as updated by the customer in the Deposit page (name on card, expiration data, the last four digits of the credit card number, token, etc.).
• Customer Details: The customer’s personal information as updated by the customer in the Deposit page (first and last name, the address, the contact details, etc.). By default, these parameters are returned. However, during your configuration you can instruct Nuvei to remove them from the response.
• Other Parameters: Merchant custom fields and other miscellaneous parameters.

Integrating DMNs

When the merchant integrates with Nuvei’s DMN, the Nuvei server executes an HTTPS request directly to the merchant web server without passing through the customer’s browser.

To integrate with the DMN, the merchant must provide to Nuvei the IP address of the URL that leads to the callback entry point to your server. This is usually a small module/application, which constantly listens and waits for incoming HTTPS requests from Nuvei’s server.

When the Nuvei server sends data via the DMN, Nuvei executes an HTTPS GET/POST request to the merchant’s server that includes the relevant parameters in the HTTPS GET/POST request.

Example

The merchant provides the following DMN URL:

https://myserver.com/SafeCharge/dmn/receiveNotification

The Nuvei server calls back by using the HTTPS GET/POST request to the provided DMN URL. The request includes all the relevant data for the HTTPS GET/POST parameters.

For example, the Nuvei server executes the following HTTPS GET/POST request to the merchant’s server to send the response via DMN:

https://myserver.com/SafeCharge/dmn/receiveNotification?ppp_status=OK&ppp_TransactionID=547&TransactionId=45402&userid=111&merchant_unique_id=234234unique_id&customData=342dssdee&productId=12345product_id&first_name=Diyan&last_name=Yordanov&email=dido%40domain.com&totalAmount=47.25&currency=USD&Status=APPROVED

Nuvei can send many DMNs at one time depending on how many transactions and/or retries of failed attempts are being relayed simultaneously. Some firewalls, such as Incapsula, may recognize these as DDoS attacks and block Nuvei. It is recommended that the merchant ensures that the following IP ranges are whitelisted with local and web firewalls.

Nuvei sends DMNs from the following IP addresses:

• Test: IP DMN server range is: 91.220.189.12–91.220.189.16 / 52.16.211.57, 52.17.110.204
• Live: Nuvei has several IP addresses for live DMN servers. A listener should be prepared to receive messages from the following IP addresses: 194.247.167.32 / 87.120.10.184 – 87.120.10.187

When using the DMN, Nuvei recommends that merchants use the merchant_unique_id parameter.

The merchant_unique_id parameter enables mapping between responses coming from DMN data.

To integrate DMNs, provide Nuvei with the IP and URL of the DMN listener in use.

Receiving DMN Notifications

When the DMN notification is sent to the merchant’s DMN URL, the Nuvei server expects the merchant’s server to respond with Status code 200 – OK. After the DMN is successfully sent, all the transactions that were successfully sent in that notification are recorded in the Nuvei database as Processed/Sent.

If the DMN is not successfully sent, the Nuvei database records the status of the transaction notification as In Retry, and the DMN attempts to resend the notification every 15 minutes for 24 hours. If the DMN fails to send the notification in each retry attempt over a 24-hour period, the DMN stops attempting to resend the notification and records the status of the notification as FAILED.

If the IP address of your DMN listener has to be changed, then the merchant must notify Nuvei in advance to prevent an interruption of the service.

APMs and DMN Notifications

After processing an alternative payment method (APM) transaction, the Nuvei system returns a DMN which includes payment_method (the payment method selected by the customer), and Status (the result of the transaction).
Status has three possible values:

• APPROVED: The transaction was processed and approved by the APM processor.
• DECLINED: The transaction was processed by the APM processor and declined.
• PENDING: The transaction is being processed by the APM processor.

APM transactions are processed synchronously or asynchronously depending on the APM.
Asynchronous transaction processing often involves time delays ranging from a few seconds to several days. After the final result (APPROVE or DECLINE) is received from the APM processor, Nuvei sends the merchant an additional DMN containing the same transaction data as the previous DMN and the final Status of the transaction.

Authenticating a DMN Checksum

To authenticate a DMN callback, Nuvei includes a checksum among the HTTPS parameters in the DMN. This checksum should be used to verify that the DMN callback was sent by Nuvei. The checksum uses SHA-256 encryption same as the checksum generated when sending HTTPS requests to Nuvei’s server.

The HTTPS parameter containing the DMN checksum is named advanceResponseChecksum.

To authenticate a DMN response checksum:

1. Concatenate the following parameters in the exact order as follows:
   The merchant secret key followed by the parameters received from the DMN callback:
   totalAmount, currency, responseTimeStamp (in GMT), ppp_TransactionID, Status, productId.
   (If this parameter was not sent to Nuvei, then concatenate all item names instead. For example, Testproduct1 and Testproduct.)
2. Use SHA-256 encryption on the result string of the concatenation. Use encoding passed from the merchant site to create the encryption. The default encoding is UTF-8 (unless the encoding input parameter specifies otherwise).
   Once the DMN response is received from Nuvei, compare the SHA-256 result to the advanceResponseChecksum parameter in the DMN callback.

Example of DMN Response Checksum

Merchant Secret Key: AJHFH9349JASFJHADJ9834
totalAmount: 115
currency: USD
responseTimeStamp: 2020-03-14.16:22:34
ppp_TransactionID: 3453459
Status: APPROVED
productId: Your Product

After concatenation, you have the following string:

AJHFH9349JASFJHADJ9834115USD2020-11-13.13:22:343453459APPROVEDYour Product

The calculated checksum is after using SHA-256 encryption:

6501f10efbfc9599d3e79fc0e24a5662e60292b0025834d0e2d09c58945aedbb

Pre-deposit DMN

The purpose of the pre-deposit DMN is the merchant to review the deposit prior accepting the deposit. The merchant usually checks the amount of the deposit and/or the deposit payment method.

Pre-deposit DMN Information

• Transaction Parameters: The parameters of the transaction originally sent to the Cashier and the parameters of the outcome of the PPP’s work (including the response checksum).
  Missing parameters: Since no actual fiscal transaction has been performed, the following parameters are not present in the DMN: ppp_status along with all fiscal related parameters and threeD parameters.
• Payment Parameters: The unprotected payment method information as updated by the customer in the Deposit page (name on card, expiration data, the last four digits of the credit card number, token, etc.).
• Customer Details: The customer’s personal information as updated by the customer in the Deposit page (first and last name, the address, the contact details, etc.). By default, these parameters are returned. However, during your configuration you can instruct Nuvei to remove them from the response.
• Other Parameters: Merchant custom fields and other miscellaneous parameters.

Handling Pre-deposit DMNs

After the customer attempts a deposit, Nuvei sends notification to the merchant’s pre-deposit DMN URL. Nuvei expects to receive from the merchant a DMN message response. Possible response values are as follows:

• Action: Approve – The deposit is processed.
• Action: Decline – The deposit is declined.

If the pre-deposit DMN is not successfully sent, the transaction attempt is declined. The pre-deposit DMN does not attempt to resend the notification.

DMN Parameters

All parameters are case-sensitive.

Parameters	Mandatory	Description
ppp_status	Yes	The status of the transaction. OK indicates that the transaction was approved. Pending occurs only for APM transactions in which the final status is not immediately returned. FAIL indicates that the transaction was declined or there was an error.
ppp_TransactionID	Yes	A unique 64-bit number that identifies the Nuvei payment page transaction.
totalAmount	Yes	Total amount of all the items of a customer's purchase sent to the payment page. For merchants with the currency conversion feature enabled, the value of this parameter is original total amount of items before the currency is converted.
currency	Yes	Currency selected by the customer that was sent to the payment page. For merchants with the currency conversion feature enabled, the value of this parameter is the original currency sent to the payment page.
convertedCurrency	No	The final currency selected by the customer in the payment page in which the transaction was processed with the acquirer bank. This feature is available only for merchants with currency conversion enabled.
convertedAmount	No	The final amount of the transaction after the customer converted the currency through the payment page. This is the amount that was processed through the acquirer bank. This feature is available only for merchants with currency conversion enabled.
responseChecksum	Yes	Deprecated checksum parameter.
advanceResponseChecksum	Yes	Advanced response checksum that ensures that the DMN callback is authentic.
TransactionID	No	A unique 64-bit number that identifies the fiscal transaction in the Nuvei payment gateway. If no fiscal transaction actually occurred, ppp_status is FAIL and this parameter is empty.
transactionType	No	The value of this parameter shows the type of transaction, Sale, Auth, Credit, Void, Chargeback, or Modification. This service is available only upon request.
Status	No	Status of the Nuvei Payment Gateway fiscal transaction: APPROVED, SUCCESS, DECLINED, ERROR, PENDING. If no fiscal transaction actually occurred, ppp_status is FAIL and this parameter value is DECLINED.
userPaymentOptionId	No	Each time a customer uses a payment method, Nuvei assigns a unique ID to that payment method. The next time the customer uses a payment method in which Nuvei has already assigned an ID, the ID is returned as the value of this parameter. When a new payment method is used, the value of this parameter is empty.
externalTransactionId	No	A unique ID generated by Nuvei that represents the APM transaction.
userid	No	The string that you have passed as the userid parameter initially when making the HTTPS POST request to the payment page.
customData	No	The ID that you have passed as the customData parameter initially when making the first request to the payment page.
productId	No	The ID that you have passed as the productId parameter initially when making the first request to the payment page.
first_name	No	Firstname of the user that processes a transaction, if supplied.
last_name	No	Lastname of the user that processes a transaction, if supplied.
email	No	Email of the user that processes a transaction, if supplied.
externalEmail	No	PayPal only. Email address returned from external alternative payment method. This parameter is the email address of the PayPal account.
cardCompany	No	The name of the credit card company. The possible values are: Visa, Amex, MasterCard, Diners, Diners, Discover, JCB, LaserCard, Maestro, Solo, and Switch. This value is provided when the value of the payment_method parameter is cc_card or dc_card.
customFieldX	No	Fifteen custom fields that you may use by replacing X with 1 to 15. The customFieldX that you have passed as the customFieldX parameter initially when making the first request to the Public Payment Page.
invoice_id	No	The invoice_id that you have passed as the invoice_id parameter initially when making the first request to the Public Payment Page.
address1	No	Address1 of the user that processes a transaction, if supplied.
address2	No	Address2 of the user that processes a transaction, if supplied.
country	No	Country of the user that processes a transaction, if supplied.
state	No	State of the user that processes a transaction, if supplied.
city	No	City of the user that processes a transaction, if supplied.
zip	No	ZIP code of the user that processes a transaction, if supplied.
phone1	No	Phone1 of the user that processes a transaction, if supplied.
phone2	No	Phone2 of the user that processes a transaction, if supplied.
phone3	No	Phone3 of the user that processes a transaction, if supplied.
nameOnCard	No	Name on card of the user that processes a transaction, if supplied.
cardNumber	No	Masked card number of the user that processes a transaction, if supplied. The parameter becomes mandatory if payment method is credit card or debit Card. If other payment method is used empty string is returned.
expMonth	No	Expiration month of card used for this transaction, if supplied. The parameter becomes mandatory if payment method is credit card. If another payment method is used an empty string is returned.
expYear	No	Expiration year of card used for this transaction, if supplied. The field becomes mandatory if payment method is credit card. If another payment method is used an empty string is returned.
Token	No	Tokens are strings of random digits, letters, and symbols characters that represent a single credit card number. When you submit your customers' full credit card number, Nuvei provides you with a token in the response that represents your customers' credit card. The next time a returning customer completes a transaction, you send Nuvei the token instead of the customer's credit card information. Nuvei returns this value in the response as well as the DMN response.
tokenId	No	Deprecated. ID of the token. Used in combination with the token.
orderTransactionId	No	This value is generated by PlayTech for transactions processed through PlayTech's Cashier. This value helps to identify individual transactions that are related to the same Order ID.
3dflow	No	This parameter indicates if the transaction was processed through the 3D-Secure flow or not: 0: Not processed through 3D-Secure. 1: Processed through 3D-Secure. Note: This parameter is currently only returned for 3D-Secure v1.
promoCode	No	This value is a promotional code you define that you can use to apply discounts to your products or services. Nuvei does not apply any discounts and only returns the value you sent in the HTTPS request.
ExErrCode	No	When a transaction is successful, this field is 0. When a transaction is not successful, the parameter is the code of the specific error.
ErrCode	No	When a transaction is successful, this field is 0. When a transaction is not successful, the parameter is the code of the generic error.
errApmCode	No	The error code for a transaction processed through an APM returned by the APM.
errApmDescription	No	The error description for a transaction processed through an APM returned by the APM.
errScCode	No	The error code for a transaction processed through an APM returned by Nuvei.
errScDescription	No	The error description for a transaction processed through an APM returned by Nuvei.
AuthCode	No	An authorization code (up to 35 characters) that is returned for each approved and pending transaction.
acquirerId	No	Acquiring bank unique ID. The value 0 represents an invalid bank code.
bin	No	The first six digits from the credit card number for identifying the processing bank. The rest of the number is not displayed.
shippingCountry	No	Shipping country of the user that processes a transaction, if supplied. An empty string is returned when the shipping feature is not enabled.
shippingState	No	Shipping state of the user that processes a transaction, if supplied. An empty string is returned when the shipping feature is not enabled.
shippingCity	No	Shipping city of the user that processes a transaction, if supplied. An empty string is returned when the shipping feature is not enabled.
shippingAddress	No	Shipping address of the user that processes a transaction, if supplied. An empty string is returned when the shipping feature is not enabled.
shippingZip	No	Shipping ZIP code of the user that processes a transaction, if supplied. An empty string is returned when the shipping feature is not enabled.
shippingFirstName	No	Shipping first name of the user that processes a transaction, if supplied. An empty string is returned when the shipping feature is not enabled.
shippingLastName	No	Shipping last name of the user that processes a transaction, if supplied. An empty string is returned when the shipping feature is not enabled.
shippingPhone	No	Shipping phone of the user that processes a transaction, if supplied. An empty string is returned when the shipping feature is not enabled.
shippingCell	No	Shipping mobile phone of the user that processes a transaction, if supplied. An empty string is returned when the shipping feature is not enabled.
shippingMail	No	Shipping email of the user that processes a transaction, if supplied. An empty string is returned when the shipping feature is not enabled.
total_discount	No	The total amount of all the values of the item_discount_X parameter combined.
total_handling	No	The handling parameter that the merchant passed to Nuvei in the HTTPS POST request.
total_shipping	No	The shipping parameter that the merchant passed as the shipping parameter initially when making the first request to the payment page.
total_tax	No	The total tax parameter that you have passed initially when making the first request to the payment page.
buyButtonProductBundleId	No	Contains the ID of the product bundle when the buy button payment was processed.
merchant_site_id	Yes	The ID, provided by Nuvei, which uniquely defines a particular merchant customization.
requestVersion	Yes	The version of the request. The current version is 3.0.0.
message	Yes	A message from Nuvei about the transaction that has been done.
merchantLocale	No	The language and country of the user in ISO code in the following format: [language ISO]_[country ISO] The possible values of this parameter are provided below: English (US): en_US English (UK): en_UK German: de_DE Chinese (PRC): zh_CN Hebrew: iw_IL French: fr_FR Dutch (Standard): nl_NL Greek: el_GR Indonesia: in_ID Italian: it_IT Japanese: ja_JP Korean: ko_KR Lithuanian: lt_LT Spanish: es_ES English (Canada): en_CA English (Australia): en_AU Russian: ru_RU Arabic: ar_AA Norwegian: no_No Portuguese: pt_BR Swedish: sv_SE Turkish: tr_TR Slovenian: sl_SI Danish: da_DK Romanian: ro_RO Bulgarian: bg_BG Polish: pl_PL Hungarian: hu_HU Vietnamese: vi_VL
unknownParameters	No	When an unknown parameter is sent to Nuvei, for example, a misspelled parameter, Nuvei returns this parameter with the value being the parameter that Nuvei did not recognize. This enables you to identify and correct any erroneous parameters.
payment_method	Yes	The payment method used for this transaction such as cc_card, dc_card, giro etc.
ID	No	Hebrew ID
merchant_id	Yes	The unique merchant ID supplied by Nuvei.
responseTimeStamp	Yes	Time set by Nuvei, when the response is received from the Gateway.
buyButtonProductId	No	Contains the ID of the product when the buy button payment was processed.
dynamicDescriptor	Yes	Dynamic descriptor passed to the Nuvei gateway for the current transaction.
Reason	No	A reason that the Gateway returned if the transaction fails. See Gateway specification. N/A is returned if it is not a regular transaction.
ReasonCode	No	A reason code that the Gateway returned if the transaction fails. See Gateway specification. N/A is returned if it is not a regular transaction.
item_name_X	Yes	The item name that you have passed as the item_name_X parameter initially when making the first request to the Public Payment Page. N/A is displayed if it is not a regular transaction.
item_number_X	No	The item number that you have passed as the item_number_X parameter initially when making the first request to the Public Payment Page. N/A is displayed if it is not a regular transaction.
item_amount_X	Yes	The item amount that you have passed as the item_amount_X parameter initially when making the first request to the Public Payment Page. N/A is displayed if it is not a regular transaction.
item_quantity_X	No	The item quantity that you have passed as the item_quantity_X parameter initially when making the first request to the Public Payment Page. N/A is displayed if it is not a regular transaction.
item_discount_X	No	The item discount that you have passed as the item_discount_X parameter initially when making the first request to the Public Payment Page. N/A is displayed if it is not a regular transaction.
item_handling_X	No	The item handling that you have passed as the item_handling_X parameter initially when making the first request to the Public Payment Page. N/A is displayed if it is not a regular transaction.
item_shipping_X	No	The item shipping that you have passed as the item_shipping_X parameter initially when making the first request to the Public Payment Page. N/A is displayed if it is not a regular transaction.
appliedPromotions	No	Used to indicate that the purchase was done using a promotion (or coupon). This parameter contacts all successfully applied promotion codes. If more than one promotion was used, the promotion names are separated by a # character.
client_ip	Yes	The IP address from which the client made the purchase.
uniqueCC	No	A unique value assigned to every credit card number.
user_token	No	This parameter shows if the payment page required existing customers to register for the specific transaction. When user_token=register, the payment page required the customer to register even if they are already registered in the system. The previously registered payment methods are deleted. When user_token=auto, the payment page checked the Nuvei database to determine if the customer was already registered.
user_token_id	No	This parameter is a unique identifier for each customer generated by the merchant.
externalAccountId	No	This parameter is the customer's username or unique identifier provided by the APM. This value is not returned for all APMs.
APMReferenceId	No	This parameter is Nuvei's reference identifier from Nuvei for each APM.
webMasterId	No	The webMasterId you passed in the request to the Public Payment Page.
finalFraudDecision	No	This parameter indicates the final fraud analysis decision made by Nuvei Risk management. Possible values: 1. Accept: The transaction is redirected for processing. 2. Reject: The transaction is rejected according to a Fraud Filter.
systemId	No	The value of this parameter is a numeric identifier generated by Nuvei for the fraud analysis service/tool.
systemName	No	The value of this parameter is an internal Nuvei name for the fraud analysis service/tool.
systemDecision	No	The Risk decision. It may be one of the following predefined string values: 1. None: No decision was rendered. 2. Accept: Transaction is recommended for processing 3. Reject: Transaction is rejected due to a high probability of fraud. 4. Review: Transaction should be manually reviewed before processing. 5. Error: An error has occurred during the analysis. No decision is rendered.
rules	No	This parameter lists all the rules that were activated by the transaction as part of Nuvei's fraud checks. This parameter is only returned when the value of the SystemDecision parameter is Reject or Review. The format of the value of the Rules parameter is URL encoded. For example: rules=ID%3D1000000260%2CDescription%3DCC+is+changing+more+than+1 +Email+Last+24+H+Review+general In the URL encoded response: %2C represents & and separates the multiple rule values. %3D represents '='.
Cvv2Reply	No	CVV2 (card verification value) response. Possible values: M – CVV2 Match N – CVV2 No Match P – Not Processed U – Issuer is not certified and/or has not provided Visa the encryption keys. S – CVV2 processor is unavailable.
AvsCode	No	The AVS (address verification) response. The following values may be returned: A – The street address matches, the ZIP code does not. W – Whole 9-digit ZIP code match, the street address does not. Y – Both the 5-digit ZIP code and the street address match. X – An exact match of both the 9-digit ZIP code and the street address. Z – Only the 5-digit ZIP code matches, the street code does not. U – Issuer Unavailable S – Not Supported R – Retry B – Not Authorized (declined) N – Both street address and ZIP code do not match.
cardType	No	The type of card used in the transaction. Possible values: credit or debit.
upoRegistrationDate	No	The date that the UPO was registered in the following format: YYYMMDDHHmmss
isPartialApproval	No	Indicates if the transaction was requested for partial approval (1) or not (0).
requestedAmount	No	For a partial approval transaction, represents the amount requested. It can be greater than the amount that was able to be processed (totalAmount).
partialApprovalStatus	No	For a partial approval transaction, indicates the status of the approval. Possible values: PENDING, APPROVED, CANCELLED, AUTO_VOID
requestedCurrency	No	For a partial approval transaction, represent the currency of the amount requested. It should be the same as the currency of the amount processed (currency).
isRebilling	No	Indicates whether this is a regular transaction or a recurring/rebilling transaction. Possible values: 0 – This is a regular transaction. 1 – This is a recurring/rebilling transaction.
autoSettleMode	No	Automatic settle feature available for merchants working in an Auth-Settle mode. It can be configured to be done per “Accept” risk decision, per specific time frame or per combination of both. Possible values: TIME, RISK, RISK-TIME.
isExternalMpi	No	Allow the merchant to provide the 3D-Secure authentication result in the request to Nuvei. Possible values: 1 – external MPI is used 0 – external MPI is not used
cavv	No	The cardholder authentication verification value. Relevant for external MPI.
xid	No	The transaction identification value. Relevant for external MPI.
eci	No	An Electronic Commerce Indicator (ECI) value is the result of a 3DS authentication request, returned by a Directory Server ("issuer ACS") (namely Visa, MasterCard, JCB, and American Express). Possible ECI values: Visa: 5 – The cardholder was successfully authenticated. 6 – The issuer or cardholder does not participate in a 3D-Secure program. 7 – Payment authentication was not performed. Mastercard: 1 – The issuer or cardholder does not participate in a 3D-Secure program. 2 – The cardholder was successfully authenticated. 6 – Payment authentication was not performed. 7 – The cardholder was successfully authenticated for the initial MIT transaction.
type	No	The type of the notification. Possible values: DEPOSIT WITHDRAWAL KYC DOCUP KYC and DOCUP are only relevant for merchants implementing Nuvei’s KYC solutions.
3DauthenticationType	No	Presents whether transaction has been processed via challenge or frictionless authentication flow. Parameter should be calculated based on the combination of acsChallengeMandated/Result parameters in Auth3D response to Cashier by GW. Values: Challenge or Frictionless If the parameter is empty, the parameter is not included in the DMN. This field is relevant only for a 3D-Secure v2 deposit flow.
3Dauthentication	No	Result: ThreeDSAuthenticator -> result ->authenticationStatus. For frictionless, result value in Auth3d response to Cashier. For a challenge, send transStatus value from CRes. If the parameter is empty, the parameter is not included in the DMN. This field is relevant only for a 3D-Secure v2 deposit flow.
3Dreason	No	ThreeDReason: from final GW response to Cashier's Sale TRX. If the parameter is empty, the parameter is not included in the DMN. This field is relevant only for a 3D-Secure v2 deposit flow.
3DwhiteListStatus	No	whiteListStatus – from final GW response to Cashier's Sale TRX. If the parameter is empty, the parameter is not included in the DMN. This field is relevant only for a 3D-Secure v2 deposit flow.
clientRequestId	No	Unique request ID in the merchant’s system. Can be used to perform future actions, such as reconciliation, identifying the transaction in the event of any issues, etc.
relatedTransactionId	No	The ID of the related transaction used if it was required for processing.
merchant_unique_id	No	The ID value that was initially passed in the merchant_unique_id parameter when making the original request to the Nuvei Payment Page.
clientUniqueId	No	If transaction sent through Nuvei API, this parameter is populated by the ID of the transaction in the merchant’s system.
externalTokenProvider	No	External token provider is a type of entity in the payment industry with its own flow (for example: Visa Checkout, Apple Pay). This indicates which external token provider was used in current transaction.
isDecrypeService	No	External token provider is a type of entity in the payment industry with its own flow (for example: Visa Checkout). This indicates whether the payments gateway decrypted the external token data provided, which was required for processing.
apmPayerInfo	No	Additional customer information that is received back from an external alternative payment service provider.
3DReasonId	No	Reason ID for a failed 3D-Secure authorization as received from the issuer.
threeDReason	No	Reason description for a failed 3D-Secure authorization as received from the issuer.
challengeCancelReasonId	No	Reason ID for a cancelled 3D-Secure authentication as received from the issuer.
ChallengeCancelReason	No	Reason for a cancelled 3D-Secure authentication as received from the issuer.
isLiabilityOnIssuer	No	Indicates if there is a 3D-Secure liability shift.
challengePreferenceReason	No	If a challenge is requested, this field provides the reason for it.
houseNumber	No	Indicates the provided house number.
amountWithoutFee	No	The transaction amount without the fee.
feeAmount	No	The amount of the transaction fee.
manage_3d_mode	No	The value of manage3D mode that was submitted on the call: AUTO ON OFF
acquirerBank	No	The name of the acquirer bank or payment processor of the processed transaction.
cardIssuerCountry	No	Country the card was issued in.
merchant_status	No	Status of KYC merchants. Possible values: Approved, Declined, None, Pending, Review.
customCurrency	No	Custom currency for airline use.
threeDSVersion	No	The 3D-Secure version. Possible values: 2.1.0 (if 3D-Secure v2 flow used) or null (if not used).