Create Checkout Session
Request to create a session identifier for the checkout interaction. The session identifier, when included in the Checkout.configure() function, allows you to return the payer to the merchant's website after completing the payment attempt.
Authentication
This operation requires authentication via one of the following methods:
- Certificate authentication.
- 
                            
                                            To authenticate to the API two additional NVP parameters must be supplied in the request.
                                            Provide 'merchant.<your gateway merchant ID>' in the apiUsername field and your API password in the apiPassword field.
Request
Fields
String
                        = CREATE_CHECKOUT_SESSION
                                    FIXED
                                
                Any sequence of zero or more unicode characters.
Details of the payer's billing address.
The payer's billing address.
This data may be used to qualify for better interchange rates on corporate purchase card transactions.
String
                        
                                            OPTIONAL
                                
                The city portion of the address.
Data can consist of any characters
String
                        
                                            OPTIONAL
                                
                The name of the company associated with this address.
Data can consist of any characters
Upper case alphabetic text
                        
                                            OPTIONAL
                                
                The 3 letter ISO standard alpha country code of the address.
Data must consist of the characters A-Z
Alphanumeric + additional characters
                        
                                            OPTIONAL
                                
                The post code or zip code of the address.
Data may consist of the characters 0-9, a-z, A-Z, ' ', '-'
String
                        
                                            OPTIONAL
                                
                The state or province of the address.
Data can consist of any characters
String
                        
                                            OPTIONAL
                                
                The first line of the address.
For example, this may be the street name and number, or the Post Office Box details.
Note: The transaction response will contain a concatenation of street and street2 data. If the concatenated value is more than the maximum field length, street2 data will be truncated.
Data can consist of any characters
String
                        
                                            OPTIONAL
                                
                The second line of the address (if provided).
Note: This field will be empty in the transaction response, as street2 data will be concatenated into the street field.
Data can consist of any characters
Information about any constraints that apply to this transaction.
Specify constraints to ensure that the transaction conforms to predefined criteria. This is useful if your integration does not directly collect all the transaction values (e.g. a session-based integration or a checkout integration).
Information about the payment plan constraints which apply for this transaction.
Specify payment plan constraints to restrict the available payment plan options for this transaction.
Integer
                        
                                            OPTIONAL
                                
                The allowable number of deferral months for the payment plan.
A number comprising the digits 0-9, having at least one digit. (For a complete description, see http://www.w3.org/TR/xmlschema-2/#nonNegativeInteger.)
Integer
                        
                                            OPTIONAL
                                
                The allowable number of installments for the payment plan.
A number comprising the digits 0-9, having at least one digit. (For a complete description, see http://www.w3.org/TR/xmlschema-2/#nonNegativeInteger.)
String
                        
                                            OPTIONAL
                                
                The identifiers for the payment plans supported for this transaction.
If you wish to offer any payment plans to the payer, provide the plan identifiers in this field else pass it as empty.
See Payment Plans for the supported payment plans and their identifiers.
Data can consist of any characters
String
                        
                                            OPTIONAL
                                
                A transient identifier for the request, that can be used to match the response to the request.
The value provided is not validated, does not persist in the gateway, and is returned as provided in the response to the request.
Data can consist of any characters
Information associated with the customer's source of transaction.
Email
                        
                                            OPTIONAL
                                
                The email address of the customer.
The field format restriction ensures that the email address is longer than 3 characters and adheres to a generous subset of valid RFC 2822 email addresses.
Ensures that the email address is longer than 3 characters and adheres to a generous subset of valid RFC 2822 email addresses
String
                        
                                            OPTIONAL
                                
                The payer's first name.
Data can consist of any characters
String
                        
                                            OPTIONAL
                                
                The payer's last or surname.
Data can consist of any characters
String
                        
                                            OPTIONAL
                                
                The contact person's mobile phone or cell phone number.
Data can consist of any characters
String
                        
                                            OPTIONAL
                                
                The phone number of the person to whom the order is being billed.
Data can consist of any characters
Information associated with the device's source of transaction.
String
                        
                                            OPTIONAL
                                
                The telephone number captured by ANI (Automatic Number Identification) when the customer calls to place the order.
Data can consist of any characters
String
                        
                                            OPTIONAL
                                
                The 2 digit ANI information identifier provided by the telephone company to indicate the call type, for example, cellular (61-63), toll free (24,25), etc.
Data can consist of any characters
String
                        
                                            OPTIONAL
                                
                The mobile phone manufacturer's identifier for the model of the mobile device used to initiate the payment.
Data can consist of any characters
Information that controls the payer's checkout interaction.
Boolean
                        
                                            OPTIONAL
                                
                Indicates if you wish to bypass payer authentication using the 3-D Secure Service.
By default, the payer is prompted to authenticate before performing the payment if configured for the 3-D Secure Service.
The values 'true' or 'false'. (For a complete description, see http://www.w3.org/TR/xmlschema-2/#boolean.)
URI
                        
                                            OPTIONAL
                                
                The URL to which you want to redirect the payer's browser if they cancel their payment.
This could be a link to the payer's shopping cart, or the home page of your website.
Data must be an absolute URI conforming to the URI syntax published by IETF RFC 2396. The following schemes are forbidden : javascript
A group of objects that control the visibility of, and payer-interaction with, displayed information.
Enumeration
                        
                                            OPTIONAL
                                
                Indicates if you require the payer to provide their billing address during the payment interaction.
If you do not provide this field, the billing address will be optional.
Value must be a member of the following list. The values are case sensitive.
HIDE
                                        Hides data fields from the payer.
MANDATORY
                                        Displays data fields and allows the payer to enter data into these fields.
OPTIONAL
                                        Displays data fields and allows the payer to opt out of data entry for these fields.
READ_ONLY
                                        Data is displayed but cannot be modified.
Enumeration
                        
                                            OPTIONAL
                                
                Indicates if you require the payer to provide the card security code for their card payment during the payment interaction.
If you do not provide this field, the card security code will be mandatory.
Value must be a member of the following list. The values are case sensitive.
MANDATORY
                                        Displays data fields and allows the payer to enter data into these fields.
OPTIONAL
                                        Displays data fields and allows the payer to opt out of data entry for these fields.
Enumeration
                        
                                            OPTIONAL
                                
                Indicates if you wish to display a 'Confirm Account Number' field for the ACH Account Number entry.
If the field is shown, the gateway enforces that the same value is entered in both the 'Account Number' and 'Confirm Account Number' fields.If you do not provide a value for this field, the gateway defaults the value to SHOW.
Value must be a member of the following list. The values are case sensitive.
HIDE
                                        Do not display confirm account number.
SHOW
                                        Display confirm account number.
Enumeration
                        
                                            OPTIONAL
                                
                Indicates if you require the payer to provide their email address on the payment interaction.
If you do not provide this field, the payer's email address will be hidden.
Value must be a member of the following list. The values are case sensitive.
HIDE
                                        Hides data fields from the payer.
MANDATORY
                                        Displays data fields and allows the payer to enter data into these fields.
OPTIONAL
                                        Displays data fields and allows the payer to opt out of data entry for these fields.
READ_ONLY
                                        Data is displayed but cannot be modified.
Enumeration
                        
                                            OPTIONAL
                                
                Indicates if you wish to display a summary of the order before the payer submits their payment.
If you do not provide a value for this field, the gateway defaults the value to READ_ONLY.
Value must be a member of the following list. The values are case sensitive.
HIDE
                                        Do not display order summary.
READ_ONLY
                                        Display order summary, which may include payment details.
Enumeration
                        
                                            OPTIONAL
                                
                Indicates whether you wish to hide payment terms for a payment plan during the payment interaction.
If you do not provide this field the payment terms for a payment plan will be displayed.
Value must be a member of the following list. The values are case sensitive.
HIDE
                                        Hides the payment terms from the payer. Note that offering Plan AMEX in some regions may require you to inform the payer of the payment terms before processing the payment.
SHOW_IF_SUPPORTED
                                        Displays the payment terms, if available, to the payer.
Enumeration
                        
                                            OPTIONAL
                                
                Indicates if you wish to hide the shipping details on the payment interaction.
If you don't provide this field, shipping details will be displayed to the payer.
Value must be a member of the following list. The values are case sensitive.
HIDE
                                        Hides data fields from the payer.
READ_ONLY
                                        Data is displayed but cannot be modified.
String
                        
                                            OPTIONAL
                                
                The property ID for your shop site provided by Google Analytics in the form UA-XXXXX-Y.
Provide this ID if you want to track interactions with the checkout using Google Analytics. See www.google.com/analytics.
Data can consist of any characters
String
                        
                                            OPTIONAL
                                
                A language identifier or IETF language tag to control the language of the payment interaction with the payer (e.g. en_US, es, fr-CA).
By default, the language is determined from the payer's browser. Supply a value for this field only if you wish to override the default behavior. If the language you specify is not supported by the gateway, the payment is displayed in the best matching language.
Data must be a language identifier or IETF language tag
Information that allows you to display your brand and business details during the payment interaction.
Information on your business address.
String
                        
                                            OPTIONAL
                                
                The first line of your business address for display to the payer during the payment interaction.
Data can consist of any characters
String
                        
                                            OPTIONAL
                                
                The second line of your business address for display to the payer during the payment interaction.
Data can consist of any characters
String
                        
                                            OPTIONAL
                                
                The third line of your business address for display to the payer during the payment interaction.
Data can consist of any characters
String
                        
                                            OPTIONAL
                                
                The fourth line of your business address for display to the payer during the payment interaction.
Data can consist of any characters
Email
                        
                                            OPTIONAL
                                
                The email address of your business for display to the payer during the payment interaction (e.g. an email address for customer service).
Ensures that the email address is longer than 3 characters and adheres to a generous subset of valid RFC 2822 email addresses
URI
                        
                                            OPTIONAL
                                
                The URL of your business logo for display to the payer during the payment interaction.
The URL must be secure (e.g. https://yoursite.com/images/logo.gif). You can resize the image.However, the height must not exceed 140 pixels else it will be cropped. For best results, use images in JPEG or PNG formats with dimensions Page Merchant Logo Size.
Data must be an absolute URI conforming to the URI syntax published by IETF RFC 2396. The URI must be one of the following schemes : https
String
                        REQUIRED
                                        
                The name of your business for display to the payer on the payment interaction.
Data can consist of any characters
String
                        
                                            OPTIONAL
                                
                The phone number of your business for display to the payer during the payment interaction.
Data can consist of any characters
Enumeration
                        
                                            OPTIONAL
                                
                Indicates the operation that you wish to perform during the Hosted Checkout interaction.
Value must be a member of the following list. The values are case sensitive.
NONE
                                        Hosted Checkout will collect the payment details from the payer and securely store them against the Hosted Checkout session. No operation will be performed after the payer interaction.
VERIFY
                                        Request for the Hosted Checkout interaction to verify the payer's account. The payment details are verified using the verification method supported by the acquirer and the data provided in the request.
URI
                        
                                            OPTIONAL
                                
                The URL to which you want to return the payer after completing the payment attempt.
During the redirect, the gateway will append a resultIndicator parameter to this URL. This parameter determines the result of the payment. See Obtain the Payment Result section.
Data must be an absolute URI conforming to the URI syntax published by IETF RFC 2396. The following schemes are forbidden : javascript
Alphanumeric + additional characters
                        
                                            OPTIONAL
                                
                The theme used to control the look and feel of your checkout interaction.
If you do not provide this field the default theme is will be used.
Data may consist of the characters 0-9, a-z, A-Z, '-', '_'
String
                        
                                            OPTIONAL
                                
                Your payment service provider might have configured your merchant profile to support several lines of business.
Each line of business can have different payment parameters, such as bank account, supported cards or such.
For example, lineOfBusiness = TICKET_SALES can have a different bank account from lineOfBusiness = MERCHANDISING. One line of business on your profile might be "null". To use that, do not provide the lineOfBusiness field.
Data can consist of any characters except space
Alphanumeric + additional characters
                        REQUIRED
                                        
                The unique identifier issued to you by your payment provider.
This identifier can be up to 12 characters in length.
Data may consist of the characters 0-9, a-z, A-Z, '-', '_'
Information about the order associated with this transaction.
Decimal
                        
                                            OPTIONAL
                                
                The total amount for the order.
If you provide both this value and any of the sub-total amounts (order.itemAmount, order.shippingAndHandlingAmount, order.taxAmount) then the sum of the sub-total amounts MUST equal the order.amount.
Data is a string that consists of the characters 0-9 and '.' and represents a valid decimal number.
Upper case alphabetic text
                        REQUIRED
                                        
                The currency of the order expressed as an ISO 4217 alpha code, e.g. USD.
Data must consist of the characters A-Z
String
                        
                                            OPTIONAL
                                
                Information about this order that is of interest to you.
For example order.custom.X, where 'X' is defined by you and must be less than 100 characters from the set A-Z, a-z, 0-9. For example, order.custom.salesRegion. You can specify up to 50 such fields. They are not sent to acquirers.
Data can consist of any characters
String
                        
                                            OPTIONAL
                                
                A note from the payer about this order.
Data can consist of any characters
Date
                        
                                            OPTIONAL
                                
                The date the payer placed the order.
Data must comply with ISO 8601 extended date format, yyyy-mm-dd. This data may be used to qualify for better interchange rates on corporate purchase card transactions.
ASCII Text
                        
                                            OPTIONAL
                                
                The payer's own reference for the order (for example, the purchase order number).
This data may be used to qualify for better interchange rates on corporate purchase card transactions.
Data consists of ASCII characters
String
                        
                                            OPTIONAL
                                
                Short textual description of the contents of the order.
Data can consist of any characters
Information about the items the payer purchases with the order.
String
                        
                                            OPTIONAL
                                
                The brand of the item.
For example, Dell.
Data can consist of any characters
String
                        
                                            OPTIONAL
                                
                Your category for the item.
Data can consist of any characters
String
                        
                                            OPTIONAL
                                
                Description for the item with information such as size, color, etc.
For example, 'Color:Red, Size:M'
Data can consist of any characters
Enumeration
                        
                                            OPTIONAL
                                
                Provide the industryCategory to send this line item to your acquirer for specialized processing as industry data.
Such processing might have legal obligations, which are your responsibility. Do not provide an industryCategory, unless you are certain it applies to you, and is accepted by your acquirer.
We support the following industry standard processing:US health care processing using the IIAS standard.The supported values for industryCategory are:HEALTHCARE_VISION, HEALTHCARE_DENTAL, HEALTHCARE_PRESCRIPTION, HEALTHCARE_OTHERWe formulate an IIAS message by summing the amounts of all the line items having the same industryCategory. The amount of a line item is:(order.item.unitPrice + order.item.tax) * order.item.quantity
Value must be a member of the following list. The values are case sensitive.
HEALTHCARE_DENTAL
                                        HEALTHCARE_OTHER
                                        HEALTHCARE_PRESCRIPTION
                                        HEALTHCARE_VISION
                                        String
                        REQUIRED
                                        
                A short name describing the item.
Data can consist of any characters
Digits
                        REQUIRED
                                        
                The quantity of the item.
Data is a number between 1 and 9999999999999999 represented as a string.
String
                        
                                            OPTIONAL
                                
                The SKU (Stock Keeping Unit) or the item identifier for this item.
Data can consist of any characters
Decimal
                        REQUIRED
                                        
                The cost price for the item.
This amount is multiplied with the item.quantity to determine the total amount for this item.
Data is a string that consists of the characters 0-9, '.' and '-' and represents a valid decimal number.
Decimal
                        
                                            OPTIONAL
                                
                The tax amount for the item.
This amount is multiplied with the item.quantity to determine the total tax amount for this item.
Data is a string that consists of the characters 0-9, '.' and '-' and represents a valid decimal number.
Decimal
                        
                                            OPTIONAL
                                
                The total item amount for the order.
If you do not provide this value but provide line item data, then this amount is calculated as the sum of the item.quantity times the item.unitPrice for all the line items (total item amount).
If you provide both this value and line item data, then the order.itemAmount MUST equal the total item amount.
Data is a string that consists of the characters 0-9 and '.' and represents a valid decimal number.
String
                        
                                            OPTIONAL
                                
                Your identifier for the part of your organization that is responsible for the order.
You might provide this data when you want to track the accountability for the order. For example, store number, sales region, branch, or profit center
Data can consist of any characters
String
                        
                                            OPTIONAL
                                
                Unique SKU (Stock Keeping Unit) for the single, most expensive product associated with this order.
This data may be used to qualify for better interchange rates on corporate purchase card transactions.
Data can consist of any characters
Alphanumeric
                        
                                            OPTIONAL
                                
                Your reference to the contract or agreement you have with the payer to process recurring payments.
Data may consist of the characters 0-9, a-z, A-Z
String
                        
                                            OPTIONAL
                                
                The identifier of the order.
For example, a shopping cart number, an order number, or an invoice number.
Data can consist of any characters
String
                        
                                            OPTIONAL
                                
                The name of the person who requested the goods or services.
This data may be used to qualify for better interchange rates on corporate purchase card transactions.
Data can consist of any characters
Decimal
                        
                                            OPTIONAL
                                
                The total shipping and handling amount for the order.
Data is a string that consists of the characters 0-9 and '.' and represents a valid decimal number.
Allows you to provide a breakdown of the types of taxes and amount per type of tax included in order.taxAmount.
Decimal
                        
                                            OPTIONAL
                                
                Provide the amount for this type of tax.
Data is a string that consists of the characters 0-9 and '.' and represents a valid decimal number.
String
                        
                                            OPTIONAL
                                
                Provide the name for the type of tax for order.taxAmount.
Data can consist of any characters
Decimal
                        
                                            OPTIONAL
                                
                The total tax amount for the order.
If you do not provide this value but provide line item data, then this amount is calculated as the sum of the item.quantity times the item.unitTaxAmount for all the line items (total tax amount).
If you provide both this value and line item data, then the order.taxAmount MUST equal the total tax amount.
This data may be used to qualify for better interchange rates on corporate purchase card transactions.
Data is a string that consists of the characters 0-9 and '.' and represents a valid decimal number.
String
                        
                                            OPTIONAL
                                
                Your tax registration identifier provided by the tax authority (for example, federal tax identification number, ABN).
This data may be used to qualify for better interchange rates on corporate purchase card transactions.
Data can consist of any characters
String
                        REQUIRED
                                        
                A unique identifier for this order to distinguish it from any other order you create.
Use this identifier when referring to this order in subsequent transactions and in retrieval operations. This value must be unique for every order you create using your merchant profile.
Data can consist of any characters
Url
                        
                                            OPTIONAL
                                
                The URL to which the gateway will send Webhook notifications when an order is created or updated.
To receive notifications at this URL, you must enable Webhook notifications in Merchant Administration. Ensure the URL is HTTPS
Ensure that the URL begins with 'https' and is longer than 11 characters.
String
                        
                                            OPTIONAL
                                
                If, when integrating with the gateway, you are using a solution (e.g. a shopping cart or e-commerce solution) provided, supported or certified by your payment service provider, enter the solution ID issued by your payment service provider here.
If your payment service provider has not provided you with a solution ID, you should ignore this field.
Data can consist of any characters
Information relevant to risk assessment.
Enumeration
                        
                                            OPTIONAL
                                
                The risk rules you wish to bypass when performing risk assessment for an order.
Value must be a member of the following list. The values are case sensitive.
ALL
                                        Details about the recipient of the payment and the destination account for the payment.
Your acquirer may require you to provide these details if you are a financial institution (Merchant Category Code 6012) submitting a transaction for a person paying off outstanding debts. Otherwise, do not provide these data elements.
String
                        REQUIRED
                                        
                The account identifier for the payment recipient's account.
For payments into a card account provide the card number. For payments into other accounts (for example a bank account) provide the account number. The value provided will be returned masked in the response.
Data can consist of any characters
Date
                        REQUIRED
                                        
                The date of birth of the primary payment recipient in yyyy-mm-dd format.
Data must comply with ISO 8601 extended date format, yyyy-mm-dd
String
                        REQUIRED
                                        
                Last name of the primary payment recipient.
Data can consist of any characters
String
                        REQUIRED
                                        
                Postcode of the primary payment recipient.
Data can consist of any characters
Information on the shipping address including the contact details of the addressee.
The address to which the goods contained in this order are being shipped.
This data may be used to qualify for better interchange rates on corporate purchase card transactions.
String
                        
                                            OPTIONAL
                                
                The city portion of the address.
Data can consist of any characters
String
                        
                                            OPTIONAL
                                
                The name of the company associated with this address.
Data can consist of any characters
Upper case alphabetic text
                        
                                            OPTIONAL
                                
                The 3 letter ISO standard alpha country code of the address.
Data must consist of the characters A-Z
Alphanumeric + additional characters
                        
                                            OPTIONAL
                                
                The post code or zip code of the address.
Data may consist of the characters 0-9, a-z, A-Z, ' ', '-'
String
                        
                                            OPTIONAL
                                
                The state or province of the address.
Data can consist of any characters
String
                        
                                            OPTIONAL
                                
                The first line of the address.
For example, this may be the street name and number, or the Post Office Box details.
Note: The transaction response will contain a concatenation of street and street2 data. If the concatenated value is more than the maximum field length, street2 data will be truncated.
Data can consist of any characters
String
                        
                                            OPTIONAL
                                
                The second line of the address (if provided).
Note: This field will be empty in the transaction response, as street2 data will be concatenated into the street field.
Data can consist of any characters
Details of the contact person at the address the goods will be shipped to.
Email
                        
                                            OPTIONAL
                                
                The contact person's email address.
The field format restriction ensures that the email address is longer than 3 characters and adheres to a generous subset of valid RFC 2822 email addresses.
Ensures that the email address is longer than 3 characters and adheres to a generous subset of valid RFC 2822 email addresses
String
                        
                                            OPTIONAL
                                
                The first name of the person to whom the order is being shipped.
Data can consist of any characters
String
                        
                                            OPTIONAL
                                
                The last name or surname of the person to whom the order is being shipped.
Data can consist of any characters
String
                        
                                            OPTIONAL
                                
                The contact person's mobile phone or cell phone number.
Data can consist of any characters
String
                        
                                            OPTIONAL
                                
                The phone number of the person to whom the order is being shipped.
Data can consist of any characters
Enumeration
                        
                                            OPTIONAL
                                
                The shipping method code to indicate the time frame and the priority of the order.
Value must be a member of the following list. The values are case sensitive.
ELECTRONIC
                                        Electronic delivery.
GROUND
                                        Ground (4 or more days).
OVERNIGHT
                                        Overnight (next day).
PRIORITY
                                        Priority (2-3 days).
SAME_DAY
                                        Same day.
Information about this transaction.
Additional information to be passed to acquirer.
String
                        
                                            OPTIONAL
                                
                Additional information requested by the acquirer which cannot be passed using other available data fields.
This field must not contain sensitive data.
Data can consist of any characters, but sensitive data will be rejected
String
                        
                                            OPTIONAL
                                
                This is the value provided to the acquirer to identify the order.
Ideally this will be the order.id, however if that value cannot be used directly, it will be transformed by the gateway to a unique value that the acquirer will accept. If that behavior is not suitable, you can directly provide the value in this field and it will be passed to the acquirer. You then take responsibility for its correctness. (Note: Contact your payment provider to see if this is supported for your acquirer).
Data can consist of any characters, but sensitive data will be rejected
Boolean
                        
                                            OPTIONAL
                                
                Set this flag if the transaction is a manual cash disbursement transaction, i.e. cash is disbursed upon the acceptance of a card by a financial institution teller.
The values 'true' or 'false'. (For a complete description, see http://www.w3.org/TR/xmlschema-2/#boolean.)
Enumeration
                        
                                            OPTIONAL
                                
                Indicates the frequency of the transaction offered to the payer.
Value must be a member of the following list. The values are case sensitive.
INSTALLMENT
                                        Indicates an installment transaction where the payer authorizes you to deduct multiple payments over an agreed period of time for a single purchase.
RECURRING
                                        Indicates a recurring transaction where the payer authorizes you to automatically debit their accounts for bill or invoice payments.
SINGLE
                                        Indicates a single transaction where a single payment is used to complete the order.
String
                        
                                            OPTIONAL
                                
                Your note about this transaction.
Data can consist of any characters
String
                        
                                            OPTIONAL
                                
                An optional identifier for this transaction.
Data can consist of any characters
Enumeration
                        
                                            OPTIONAL
                                
                Indicates the source through which you received the transaction.
Value must be a member of the following list. The values are case sensitive.
CALL_CENTRE
                                        Transaction conducted via a call centre.
CARD_PRESENT
                                        Transaction where the card is presented to the merchant.
INTERNET
                                        Transaction conducted over the Internet.
MAIL_ORDER
                                        Transaction received by mail.
MOTO
                                        Transaction received by mail or telephone.
TELEPHONE_ORDER
                                        Transaction received by telephone.
VOICE_RESPONSE
                                        Transaction conducted by a voice/DTMF recognition system.
Only use the functionality provided in this parameter group if you are a merchant with a card scheme approved Merchant Category Code for Aggregated Transit Fare Collection functionality.
Enumeration
                        REQUIRED
                                        
                The Aggregated Transit Fare Collection functionality allows your payers to use their contactless card as both the method of payment as well as their travel ticket.
In this case you will be allowed to aggregate these contactless payments for transit fares within limitations (time periods, amounts) as specified by the card schemes.
Use the field to indicate the purpose of this transaction.
Value must be a member of the following list. The values are case sensitive.
AGGREGATION_ACROSS_TRIPS
                                        Indicates that an Authorization is made for a fixed amount but that you intend to capture a (yet unknown) amount for more than one transit fare. It allows you to aggregate the transit fares for trips payed for using the same card within the limitations specified by the card schemes. The authorization may not be reversed.
DEBT_RECOVERY
                                        Indicates that this Authorization has been initiated by you to collect an outstanding transit fare. The card schemes place limitations on when and how often you can attempt to clear a transit fare debt. The Authorization must be a Card Not Present transaction . Do not use this flag for payments initiated by the payer to pay off fare debts. In this case submit an Authorization without this flag.
Enumeration
                        REQUIRED
                                        
                Provide the transport mode used by the payer for the first trip when fare collection is aggregated across one or more trips as well as on debt recovery transactions.
Value must be a member of the following list. The values are case sensitive.
CABLE_CAR
                                        Cable Car
COACH
                                        Coach
COMMUTER_TRAIN
                                        Commuter Train
EXPRESS_COMMUTER_TRAIN
                                        Express Commuter Train
FUNICULAR_TRAIN
                                        Funicular Train
HIGH_SPEED_TRAIN
                                        High Speed Train
INTERURBAN_BUS
                                        Interurban Bus
INTER_CITY
                                        Inter City
LIGHT_TRAIN_MASS_TRANSIT
                                        Light Train Mass Transit
LOCOMOTIVE
                                        Locomotive
OTHER
                                        Other
PARA_TRANSIT
                                        Para Transit
PARKING
                                        Parking
POWERED_MOTOR_VEHICLE
                                        Powered Motor Vehicle
REGIONAL_TRAIN
                                        Regional Train
RURAL_BUS
                                        Rural Bus
SELF_DRIVE_VEHICLE
                                        Self Drive Vehicle
TAXI
                                        Taxi
TOLL
                                        Toll
TRAILER
                                        Trailer
TRAIN
                                        Train
URBAN_BUS
                                        Urban Bus
WATER_BORNE_VEHICLE
                                        Water Borne Vehicle
String
                        
                                            OPTIONAL
                                
                The person who initiated this transaction.
For Merchant Administration, the person is identified by their logon name.
Data can consist of any characters
Response
Fields
String
                        
                                            CONDITIONAL
                                
                A transient identifier for the request, that can be used to match the response to the request.
The value provided is not validated, does not persist in the gateway, and is returned as provided in the response to the request.
Data can consist of any characters
String
                        
                                            CONDITIONAL
                                
                Your payment service provider might have configured your merchant profile to support several lines of business.
Each line of business can have different payment parameters, such as bank account, supported cards or such.
For example, lineOfBusiness = TICKET_SALES can have a different bank account from lineOfBusiness = MERCHANDISING. One line of business on your profile might be "null". To use that, do not provide the lineOfBusiness field.
Data can consist of any characters except space
Alphanumeric + additional characters
                        ALWAYS PROVIDED
                                        
                The unique identifier issued to you by your payment provider.
This identifier can be up to 12 characters in length.
Data may consist of the characters 0-9, a-z, A-Z, '-', '_'
Enumeration
                        ALWAYS PROVIDED
                                        
                A system-generated high level overall result of the transaction/operation.
Value must be a member of the following list. The values are case sensitive.
FAILURE
                                        The operation was declined or rejected by the gateway, acquirer or issuer
PENDING
                                        The operation is currently in progress or pending processing
SUCCESS
                                        The operation was successfully processed
UNKNOWN
                                        The result of the operation is unknown
ASCII Text
                        ALWAYS PROVIDED
                                        
                The session identifier for the hosted payment.
Include this identifier in the checkout request if you wish to return the payer to the merchant's website after completing the payment attempt.
Data consists of ASCII characters
Enumeration
                        ALWAYS PROVIDED
                                        
                A summary of the outcome of the last attempt to modify the session.
In order to perform an operation using this session this value must be SUCCESS.
Value must be a member of the following list. The values are case sensitive.
FAILURE
                                        The last attempt to place data into the session was unsuccessful. The session may contain invalid data. A request operation using this session will be rejected by the payment gateway.
NO_UPDATE
                                        No attempt has been made to place data into the session. A request operation using this session will be rejected by the payment gateway.
SUCCESS
                                        The last attempt to update the session was successful. You may submit a request operation using this session.
ASCII Text
                        ALWAYS PROVIDED
                                        
                Use this field to implement optimistic locking of the session content.
Do this if you make business decisions based on data from the session and wish to ensure that the same data is being used for the request operation.
To use optimistic locking, record session.version when you make your decisions, and then pass that value in session.version when you submit your request operation to the gateway.
See Making Business Decisions Based on Session Content.
Data consists of ASCII characters
ASCII Text
                        ALWAYS PROVIDED
                                        
                An identifier to determine the success of the hosted payment.
The gateway will return this value in the resultIndicator parameter (appended to the returnUrl) for successful payments only. See Obtain the Payment Result section.
Data consists of ASCII characters
Errors
Information on possible error conditions that may occur while processing an operation using the API.
Enumeration
                        
                Broadly categorizes the cause of the error.
For example, errors may occur due to invalid requests or internal system failures.
Value must be a member of the following list. The values are case sensitive.
INVALID_REQUEST
                                        The request was rejected because it did not conform to the API protocol.
REQUEST_REJECTED
                                        The request was rejected due to security reasons such as firewall rules, expired certificate, etc.
SERVER_BUSY
                                        The server did not have enough resources to process the request at the moment.
SERVER_FAILED
                                        There was an internal system failure.
String
                        
                Textual description of the error based on the cause.
This field is returned only if the cause is INVALID_REQUEST or SERVER_BUSY.
Data can consist of any characters
String
                        
                Indicates the name of the field that failed validation.
This field is returned only if the cause is INVALID_REQUEST and a field level validation error was encountered.
Data can consist of any characters
String
                        
                Indicates the code that helps the support team to quickly identify the exact cause of the error.
This field is returned only if the cause is SERVER_FAILED or REQUEST_REJECTED.
Data can consist of any characters
Enumeration
                        
                Indicates the type of field validation error.
This field is returned only if the cause is INVALID_REQUEST and a field level validation error was encountered.
Value must be a member of the following list. The values are case sensitive.
INVALID
                                        The request contained a field with a value that did not pass validation.
MISSING
                                        The request was missing a mandatory field.
UNSUPPORTED
                                        The request contained a field that is unsupported.
Enumeration
                        
                A system-generated high level overall result of the operation.
Value must be a member of the following list. The values are case sensitive.
ERROR
                                        The operation resulted in an error and hence cannot be processed.