About PayU Hub
General information about payment methods via PayU Hub
| Card Scheme |
|---|
MasterCard |
VISA |
AMEX |
DINERS |
| RuPay |
Process flow charts
Configuration
Credentials
For setting up the merchant for PayU Hub the Computop Helpdesk needs some information. These you can find in the PayU backend system ( https://control.paymentsos.com ) for your own merchant account under Account / Business Units.
You need App ID, Public API Key and Private API Key from the system settings.
Transmit the values on a safe way to Computop Helpdesk.
Webhook setup
On PayU backend system (Â https://control.paymentsos.com ) under Account / Webhooks you should setup webhooks as follows.
Paygate interface
Format Description a alphabetical as alphabetical with special characters n numeric an alphanumeric ans alphanumeric with special characters ns numeric with special characters bool boolean expression (true or false) 3 fixed length with 3 digits/characters ..3 variable length with maximum 3 digits/characters enum enumeration of allowed values dttm ISODateTime (YYYY-MM-DDThh:mm:ss) Abbreviation Description CND condition M mandatory O optional C conditional Notice: Please note that the names of parameters can be returned in upper or lower case.Definitions
Data formats
Abbreviations
Comment If a parameter is mandatory, then it must be present If a parameter is optional, then it can be present, but it is not required If a parameter is conditional, then there is a conditional rule which specifies whether it is mandatory or optional
Payment with PayU Hub via Paygate form interface
To make a payment with PayU Hub, please use the following URL:
https://www.computop-paygate.com/payuhub.aspx |
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Notice: For security reasons, Computop Paygate rejects all payment requests with formatting errors. Therefore, please use the correct data type for each parameter. The following table describes the encrypted payment request parameters:
| Key | Format | CND | Description |
|---|---|---|---|
ans..30 | M | MerchantID, assigned by Computop. Additionally this parameter has to be passed in plain language too. |
| Key | Format | CND | Description |
|---|---|---|---|
| TransID | ans..64 | M | TransactionID provided by you which should be unique for each payment |
| Key | Format | CND | Description |
|---|---|---|---|
| refnr | ans..30 | O | Merchant’s unique reference number |
| Key | Format | CND | Description |
|---|---|---|---|
| Amount | n..10 | M | Amount in the smallest currency unit (e.g. EUR Cent). Please contact the Computop Helpdesk, if you want to capture amounts <100 (smallest currency unit). |
Key | Format | CND | Description |
|---|---|---|---|
Currency | a3 | M | Currency, three digits DIN / ISO 4217, e.g. EUR. Presently only INR, USD, GBP, CAD, EUR, AED, QAR, OMR, SGD, AUD, HKD permitted. Please find an overview here: A1 Currency table |
| Key | Format | CND | Description |
|---|---|---|---|
an64 | M | Hash Message Authentication Code (HMAC) with SHA-256 algorithm. Details can be found here: |
| Key | Format | CND | Description |
|---|---|---|---|
| URLSuccess | ans..256 | M | Complete URL which calls up Paygate if payment has been successful. The URL may be called up only via port 443. This URL may not contain parameters: In order to exchange values between Paygate and shop, please use the parameter UserData.
|
| Key | Format | CND | Description |
|---|---|---|---|
| URLFailure | ans..256 | M | Complete URL which calls up Paygate if payment has been unsuccessful. The URL may be called up only via port 443. This URL may not contain parameters: In order to exchange values between Paygate and shop, please use the parameter UserData.
|
| Key | Format | CND | Description |
|---|---|---|---|
| Response | a7 | O | Status response sent by Paygate to URLSuccess and URLFailure, should be encrypted. For this purpose, transmit Response=encrypt parameter. |
| Key | Format | CND | Description |
|---|---|---|---|
| URLNotify | ans..256 | M | Complete URL which Paygate calls up in order to notify the shop about the payment result. The URL may be called up only via port 443. It may not contain parameters: Use the UserData parameter instead.
|
| Key | Format | CND | Description |
|---|---|---|---|
| UserData | ans..1024 | O | If specified at request, Paygate forwards the parameter with the payment result to the shop. |
| Key | Format | CND | Description |
|---|---|---|---|
| ReqId | ans..32 | O | To avoid double payments or actions (e.g. by ETM), enter an alphanumeric value which identifies your transaction and may be assigned only once. If the transaction or action is submitted again with the same ReqID, Computop Paygate will not carry out the payment or new action, but will just return the status of the original transaction or action. Please note that the Computop Paygate must have a finalized transaction status for the first initial action (authentication/authorisation). This does not apply to 3-D Secure authentications that are terminated by a timeout. The 3-D Secure Timeout status does not count as a completed status in which the ReqID functionality on Paygate does not take effect. Submissions with identical ReqID for an open status will be processed regularly. Notice: Please note that a ReqID is only valid for 12 month, then it gets deleted at the Paygate. |
Key | Format | CND | Description |
|---|---|---|---|
OrderDesc | ans..100 | M | Description of purchased goods, unit prices etc. |
| PayType | ans..25 | O | Name of payment method to be executed. In case the parameter is empty, the customer will be redirected to PayU Hub payment page. On PayU Hub payment page the customer can choose a payment method from list of available payment methods. Possible values for the parameter in case of PayU India as Provider:
Possible values for the parameter in case of PayU lyzico as Provider:
|
| BankCode | ans..25 | C | Mandatory in case PayType=Netbanking |
| Key | Format | CND | Description |
|---|---|---|---|
| Plain | ans..50 | O | A single value to be set by the merchant to return some information unencrypted in response/notify, e.g. the MID. "Plain"-parameter is part of encrypted "Data" in Computop Paygate and therefore protected against manipulation. |
| Key | Format | CND | Description |
|---|---|---|---|
| Custom | ans..1024 | O | "Custom"-parameter is added to the request data before encryption and is part of encrypted "Data" in Computop Paygate request. By this they are protected against manipulation by a consumer. The Custom-value is added to the Computop Paygate response in plain text and the "|" is replaced by a "&". By this you can put a single value into Custom-parameter and get multiple key-value-pairs back in response for your own purpose. |
Key | Format | CND | Description |
|---|---|---|---|
| Customer data | |||
bdFirstName | ans..60 | C | First name of the customer Mandatory in case Provider=PayU India |
bdLastName | ans..20 | C | Last name of the customer Mandatory in case Provider=PayU India |
bdStreet | ans..100 | O | Customer’s street name |
bdStreet2 | ans..100 | O | Customer´s address addition |
bdCity | ans..50 | O | Town/city of the customer |
bdZIP | ans..20 | O | Postcode of the customer |
bdState | ans..50 | O | Customer’s federal state |
bdCountryCode | a..3 | O | Country code of the customer according to ISO 3166; alphanumeric 2 or 3 characters |
CustomerID | ans..128 | O | Customer number. If customer number is not submitted instead the email address is transferred to PayU. The customer number is used to identify the customer in order to be able to select credit card data which might be stored with PayU. |
bdEmail | ans..128 | C | Email address of the customer Mandatory in case Provider=PayU India, Provider=PayU Mexico, Provider=PayU Single (Poland), Provider=PayU iyzico |
bdPhone | ans..40 | C | Customer’s phone number Mandatory in case Provider=PayU India |
| Credit card payment (in case of credit card payment the following parameters are mandatory) | |||
CCNr | n..19 | C | Credit card number at least 12-digit, numerical without spaces. You can optionally transmit also a pseudo card number (PCN). |
CCCVC | n..4 | C | Card verification number: The last 3 digits on the signature strip of the credit card. 4 digits in the case of American Express. |
CCExpiry | n6 | C | Expiry date of the credit card in the format YYYYMM, e.g. 202807 |
CCBrand | a..22 | C | Card brand: only VISA, MasterCard, AMEX, Diners, RuPay allowed. Please note the spelling! |
CreditCardHolder | ans..60 | C | Name of the credit card holder |
The following table gives the result parameters which Computop Paygate transmits to URLSuccess or URLFailure and URLNotify. If you have specified the Response=encrypt parameter, the following parameters are sent Blowfish encrypted to your system: pls. be prepared to receive additional parameters at any time and do not check the order of parameters
the key (e.g. mid, RefNr) should not be checked case-sentive
| Key | Format | CND | Description |
|---|---|---|---|
ans..30 | M | MerchantID, assigned by Computop |
| Key | Format | CND | Description |
|---|---|---|---|
| PayID | an32 | M | ID assigned by Paygate for the payment, e.g. for referencing in batch files as well as for capture or credit request. |
| Key | Format | CND | Description |
|---|---|---|---|
| XID | an32 | M | ID for all single transactions (authorisation, capture, credit note) for one payment assigned by Paygate |
| Key | Format | CND | Description |
|---|---|---|---|
| TransID | ans..64 | M | TransactionID provided by you which should be unique for each payment |
| Key | Format | CND | Description |
|---|---|---|---|
| refnr | ans..30 | O | Merchant’s unique reference number |
| Key | Format | CND | Description |
|---|---|---|---|
| Status | a..50 | M | OK or AUTHORIZED (URLSuccess) as well as FAILED (URLFailure) |
| Key | Format | CND | Description |
|---|---|---|---|
| Description | ans..1024 | M | Further details in the event that payment is rejected. Please do not use the Description but the Code parameter for the transaction status analysis! |
| Key | Format | CND | Description |
|---|---|---|---|
| Code | an8 | M | Error code according to Paygate Response Codes (A4 Error codes) |
| Key | Format | CND | Description |
|---|---|---|---|
an64 | M | Hash Message Authentication Code (HMAC) with SHA-256 algorithm. Details can be found here: |
Key | Format | CND | Description |
|---|---|---|---|
| CodeExt | n..10 | O | Error code from PayU, if agreed with Computop Helpdesk |
| ErrorText | ans..256 | O | Error text from PayU, if agreed with Computop Helpdesk |
| Key | Format | CND | Description |
|---|---|---|---|
| UserData | ans..1024 | O | If specified at request, Paygate forwards the parameter with the payment result to the shop. |
Key | Format | CND | Description |
|---|---|---|---|
TransactionID | ans..64 | O | Transaction ID from PayU |
| Channel | a..5 | M | Name of payment category to be used with the following possible values: ‘NB’ for Net Banking, ‘CC’ for Credit Card, ‘DC’ for Debit Card, ‘CASH’ for Cash Card, ‘EMI’ for EMI, ‘wallet’ for PayUMoney, ‘IVR’ for IVR, ‘COD’ for Cash On Delivery |
| BankCode | a..5 | M | Identification of the payment option used for the transaction: VISA, MAST, SAME, MAES, RUPAY, CC, AMEX, DINR |
| Brand | a..5 | C | Specific card type: VISA, MAST, SAME, MAES, RUPAY, CC, AMEX, DINR |
| Key | Format | CND | Description |
|---|---|---|---|
| Plain | ans..50 | O | A single value to be set by the merchant to return some information unencrypted in response/notify, e.g. the MID. "Plain"-parameter is part of encrypted "Data" in Computop Paygate and therefore protected against manipulation. |
| Key | Format | CND | Description |
|---|---|---|---|
| Custom | ans..1024 | O | "Custom"-parameter is added to the request data before encryption and is part of encrypted "Data" in Computop Paygate request. By this they are protected against manipulation by a consumer. The Custom-value is added to the Computop Paygate response in plain text and the "|" is replaced by a "&". By this you can put a single value into Custom-parameter and get multiple key-value-pairs back in response for your own purpose. |
Credit card payment with PayU Hub via form interface
In order to execute a credit card payment via a Paygate form, please use the following URL:
https://www.computop-paygate.com/payssl.aspx |
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Notice: For security reasons, Computop Paygate rejects all payment requests with formatting errors. Therefore, please use the correct data type for each parameter. The following table describes the encrypted payment request parameters:
| Key | Format | CND | Description |
|---|---|---|---|
ans..30 | M | MerchantID, assigned by Computop. Additionally this parameter has to be passed in plain language too. |
| Key | Format | CND | Description |
|---|---|---|---|
| TransID | ans..64 | M | TransactionID provided by you which should be unique for each payment |
| Key | Format | CND | Description |
|---|---|---|---|
| refnr | ans..30 | O | Merchant’s unique reference number |
| Key | Format | CND | Description |
|---|---|---|---|
| Amount | n..10 | M | Amount in the smallest currency unit (e.g. EUR Cent). Please contact the Computop Helpdesk, if you want to capture amounts <100 (smallest currency unit). |
Key | Format | CND | Description |
|---|---|---|---|
Currency | a3 | M | Currency, three digits DIN / ISO 4217, e.g. EUR. Presently only INR, USD, GBP, CAD, EUR, AED, QAR, OMR, SGD, AUD, HKD permitted. Please find an overview here: A1 Currency table |
| Key | Format | CND | Description |
|---|---|---|---|
an64 | M | Hash Message Authentication Code (HMAC) with SHA-256 algorithm. Details can be found here: |
| Key | Format | CND | Description |
|---|---|---|---|
| URLSuccess | ans..256 | M | Complete URL which calls up Paygate if payment has been successful. The URL may be called up only via port 443. This URL may not contain parameters: In order to exchange values between Paygate and shop, please use the parameter UserData.
|
| Key | Format | CND | Description |
|---|---|---|---|
| URLFailure | ans..256 | M | Complete URL which calls up Paygate if payment has been unsuccessful. The URL may be called up only via port 443. This URL may not contain parameters: In order to exchange values between Paygate and shop, please use the parameter UserData.
|
| Key | Format | CND | Description |
|---|---|---|---|
| Response | a7 | O | Status response sent by Paygate to URLSuccess and URLFailure, should be encrypted. For this purpose, transmit Response=encrypt parameter. |
| Key | Format | CND | Description |
|---|---|---|---|
| URLNotify | ans..256 | M | Complete URL which Paygate calls up in order to notify the shop about the payment result. The URL may be called up only via port 443. It may not contain parameters: Use the UserData parameter instead.
|
| Key | Format | CND | Description |
|---|---|---|---|
| UserData | ans..1024 | O | If specified at request, Paygate forwards the parameter with the payment result to the shop. |
| Key | Format | CND | Description |
|---|---|---|---|
| ReqId | ans..32 | O | To avoid double payments or actions (e.g. by ETM), enter an alphanumeric value which identifies your transaction and may be assigned only once. If the transaction or action is submitted again with the same ReqID, Computop Paygate will not carry out the payment or new action, but will just return the status of the original transaction or action. Please note that the Computop Paygate must have a finalized transaction status for the first initial action (authentication/authorisation). This does not apply to 3-D Secure authentications that are terminated by a timeout. The 3-D Secure Timeout status does not count as a completed status in which the ReqID functionality on Paygate does not take effect. Submissions with identical ReqID for an open status will be processed regularly. Notice: Please note that a ReqID is only valid for 12 month, then it gets deleted at the Paygate. |
Key | Format | CND | Description |
|---|---|---|---|
OrderDesc | ans..100 | M | Description of purchased goods, unit prices etc. |
| RTF | a1 | O | „I“ for initializing recurrent payments |
| Key | Format | CND | Description |
|---|---|---|---|
| Plain | ans..50 | O | A single value to be set by the merchant to return some information unencrypted in response/notify, e.g. the MID. "Plain"-parameter is part of encrypted "Data" in Computop Paygate and therefore protected against manipulation. |
| Key | Format | CND | Description |
|---|---|---|---|
| Custom | ans..1024 | O | "Custom"-parameter is added to the request data before encryption and is part of encrypted "Data" in Computop Paygate request. By this they are protected against manipulation by a consumer. The Custom-value is added to the Computop Paygate response in plain text and the "|" is replaced by a "&". By this you can put a single value into Custom-parameter and get multiple key-value-pairs back in response for your own purpose. |
Key | Format | CND | Description |
|---|---|---|---|
| Customer data | |||
bdFirstName | ans..60 | C | First name of the customer Mandatory in case Provider=PayU India |
bdLastName | ans..20 | C | Last name of the customer Mandatory in case Provider=PayU India |
bdStreet | ans..100 | O | Customer’s street name |
bdStreet2 | ans..100 | O | Customer´s address addition |
bdCity | ans..50 | O | Town/city of the customer |
bdZIP | ans..20 | O | Postcode of the customer |
bdState | ans..50 | O | Customer’s federal state |
bdCountryCode | a..3 | O | Country code of the customer according to ISO 3166; alphanumeric 2 or 3 characters |
CustomerID | ans..128 | O | Customer number. The customer number is used to identify the customer at PayU. If this is submitted the PayU stores the card number. If CustomerID is transmitted to PayUHub.aspx for subsequent payments the customer only needs to input the CVC within the form. |
bdEmail | ans..128 | C | Email address of the customer Mandatory in case Provider=PayU India, Provider=PayU iyzico, Provider=PayU Single (Poland), Provider=PayU Mexico |
bdPhone | ans..40 | C | Customer’s phone number Mandatory in case Provider=PayU India |
To adapt the layout of the SSL-page to your shop you can use the following unencrypted parameters to configure colours, fonts and images:
| Key | Format | CND | Description |
|---|---|---|---|
| Template | ans..20 | O | Name of XSLT-file with your own layout for the pay form. If you want to use the redesigned and downwards compatible Computop template, please transfer the template name “ct_compatible”. If you want to use the responsive Computop template for mobile devices, please transfer the template name “ct_responsive”. |
| Key | Format | CND | Description |
|---|---|---|---|
| Background | ans..256 | O | Background ambiance of form: URL for a background image - HTML-colour value for background colour as HEX value or - HTML-colour name |
| Key | Format | CND | Description |
|---|---|---|---|
| BGColor | ans..7 | O | Form background colour: - HTML-colour value for background colour as HEX value or - HTML-colour name |
| Key | Format | CND | Description |
|---|---|---|---|
| BGImage | ans..256 | O | Form background image: URL for a background image Please note that this value supersedes “BGColor”. |
| Key | Format | CND | Description |
|---|---|---|---|
| FColor | ans..7 | O | Text colour: - HTML-colour value as HEX value or - HTML-colour name |
| Key | Format | CND | Description |
|---|---|---|---|
| FFace | a..10 | O | HTML-name for the font |
| Key | Format | CND | Description | Beschreibung |
|---|---|---|---|---|
| FSize | n2 | O | Number for font size | Zahl für die Schriftgröße |
Key | Format | CND | Description | |
|---|---|---|---|---|
| Language | a2 (enum) | M | Language code: <de> German, <al> Albanian, <at> Austrian, <cz/cs> Czech, <dk> Danish, <en> English, <fi> Finish, <fr> French, <gr> Greek, <hu> Hungarian, <it> Italian, <jp> Japanese, <nl> Dutch, <no> Norwegian, <pl> Polish, <pt> Portuguese, <ro> Romanian, <ru> Russian, <sp> Spanish, <se> Swedish, <sk> Slovakian, <sl> Slovenian, <tr> Turkey, <zh> Simplified Chinese. No details means the language is German. | |
| CCSelect | a..10 | M | Determines preselected card type in the form: VISA, MasterCard, AMEX, Diners, RuPay | |
| Key | Format | CND | Description |
|---|---|---|---|
| URLBack | ans..256 | O | Complete URL which Paygate calls in case that Cancel is clicked by the customer. The parameter "URLBack" can be sent
In order to exchange values between Paygate and shop you may use something like this:
When user cancels payment this URL is called exactly like this and you may use URL Decode to extract parameter and values. |
| Key | Format | CND | Description |
|---|---|---|---|
| Center | n1 | O | By default the form is centered vertically and horizontally. The value <1> centres the form at the top. |
| Key | Format | CND | Description |
|---|---|---|---|
| tWidth | ans..4 | O | Width of table for input in the form as percent- (50%) or pixel values (320). |
| Key | Format | CND | Description |
|---|---|---|---|
| tHeight | ans..4 | O | Height of table for input of the payment data in the form as percent- (70%) or pixel values (480). |
The following table gives the result parameters which Computop Paygate transmits to URLSuccess or URLFailure and URLNotify. If you have specified the Response=encrypt parameter, the following parameters are sent Blowfish encrypted to your system: pls. be prepared to receive additional parameters at any time and do not check the order of parameters
the key (e.g. mid, RefNr) should not be checked case-sentive
| Key | Format | CND | Description |
|---|---|---|---|
ans..30 | M | MerchantID, assigned by Computop |
| Key | Format | CND | Description |
|---|---|---|---|
| PayID | an32 | M | ID assigned by Paygate for the payment, e.g. for referencing in batch files as well as for capture or credit request. |
| Key | Format | CND | Description |
|---|---|---|---|
| XID | an32 | M | ID for all single transactions (authorisation, capture, credit note) for one payment assigned by Paygate |
| Key | Format | CND | Description |
|---|---|---|---|
| TransID | ans..64 | M | TransactionID provided by you which should be unique for each payment |
| Key | Format | CND | Description |
|---|---|---|---|
| refnr | ans..30 | O | Merchant’s unique reference number |
| Key | Format | CND | Description |
|---|---|---|---|
| Status | a..50 | M | OK or AUTHORIZED (URLSuccess) as well as FAILED (URLFailure) |
| Key | Format | CND | Description |
|---|---|---|---|
| Description | ans..1024 | M | Further details in the event that payment is rejected. Please do not use the Description but the Code parameter for the transaction status analysis! |
| Key | Format | CND | Description |
|---|---|---|---|
| Code | an8 | M | Error code according to Paygate Response Codes (A4 Error codes) |
| Key | Format | CND | Description |
|---|---|---|---|
an64 | M | Hash Message Authentication Code (HMAC) with SHA-256 algorithm. Details can be found here: |
Key | Format | CND | Description |
|---|---|---|---|
| CodeExt | ans..10 | O | Error code from PayU, if agreed with Computop Helpdesk |
| ErrorText | ans..256 | O | Error text from PayU, if agreed with Computop Helpdesk |
| Key | Format | CND | Description |
|---|---|---|---|
| UserData | ans..1024 | O | If specified at request, Paygate forwards the parameter with the payment result to the shop. |
| Key | Format | CND | Description |
|---|---|---|---|
| PCNr | n16 | O | Pseudo Card Number: Random number generated by Computop Paygate which represents a genuine credit card number. The pseudo card number (PCN) starts with 0 and the last 3 digits correspond to those of the real card number. The PCN can be used like a genuine card number for authorisation, capture and credits. PCNr is a response value from Computop Paygate and is sent as CCNr in Request or part of card-JSON. |
| Key | Format | CND | Description |
|---|---|---|---|
| PCNr | n16 | O | Pseudo Card Number: Random number generated by Computop Paygate which represents a genuine credit card number. The pseudo card number (PCN) starts with 0 and the last 3 digits correspond to those of the real card number. The PCN can be used like a genuine card number for authorisation, capture and credits. PCNr is a response value from Computop Paygate and is sent as CCNr in Request or part of card-JSON. |
Key | Format | CND | Description |
|---|---|---|---|
CCBrand | a..22 | O | In combination with PCNr: Name of credit card brand like Visa, MasterCard |
CCExpiry | n6 | O | In combination with PCNr: Expiry date of the credit card in the format YYYYMM |
MaskedPan | an..19 | OC | Masked card number 6x4 |
TransactionID | ans..64 | C | Transaction ID from PayU |
TokenExt | an..64 | C | For recurring payments (RTF=I) the Token is transmitted for referencing the credit card data |
| Channel | a..5 | M | Name of payment category to be used with the following possible values: ‘NB’ for Net Banking, ‘CC’ for Credit Card, ‘DC’ for Debit Card, ‘CASH’ for Cash Card, ‘EMI’ for EMI, ‘wallet’ for PayUMoney, ‘IVR’ for IVR, ‘COD’ for Cash On Delivery |
| BankCode | a..5 | M | Identification of the payment option used for the transaction: VISA, MAST, SAME, MAES, RUPAY, CC, AMEX, DINR |
| Brand | a..5 | C | Specific card type: VISA, MAST, SAME, MAES, RUPAY, CC, AMEX, DINR |
| Key | Format | CND | Description |
|---|---|---|---|
| Plain | ans..50 | O | A single value to be set by the merchant to return some information unencrypted in response/notify, e.g. the MID. "Plain"-parameter is part of encrypted "Data" in Computop Paygate and therefore protected against manipulation. |
| Key | Format | CND | Description |
|---|---|---|---|
| Custom | ans..1024 | O | "Custom"-parameter is added to the request data before encryption and is part of encrypted "Data" in Computop Paygate request. By this they are protected against manipulation by a consumer. The Custom-value is added to the Computop Paygate response in plain text and the "|" is replaced by a "&". By this you can put a single value into Custom-parameter and get multiple key-value-pairs back in response for your own purpose. |
Credit card payment via Server-to-Server connection
In order to execute a recurring credit card payment with PayU Hub via a server-to-server connection, please use the following URL:
https://www.computop-paygate.com/direct.aspx |
Â
Notice: For security reasons, Computop Paygate rejects all payment requests with formatting errors. Therefore, please use the correct data type for each parameter. The following table describes the encrypted payment request parameters:
| Key | Format | CND | Description |
|---|---|---|---|
ans..30 | M | MerchantID, assigned by Computop. Additionally this parameter has to be passed in plain language too. |
| Key | Format | CND | Description |
|---|---|---|---|
| TransID | ans..64 | M | TransactionID provided by you which should be unique for each payment |
Key | Format | CND | Description |
|---|---|---|---|
ns..30 | C | Merchant’s unique reference number. Mandatory for the initial payment of a new abo (RTF=I). |
| Key | Format | CND | Description |
|---|---|---|---|
| Amount | n..10 | M | Amount in the smallest currency unit (e.g. EUR Cent). Please contact the Computop Helpdesk, if you want to capture amounts <100 (smallest currency unit). |
Key | Format | CND | Description |
|---|---|---|---|
Currency | a3 | M | Currency, three digits DIN / ISO 4217, e.g. EUR. Presently only INR, USD, GBP, CAD, EUR, AED, QAR, OMR, SGD, AUD, HKD permitted. Please find an overview here: A1 Currency table |
| Key | Format | CND | Description |
|---|---|---|---|
an64 | M | Hash Message Authentication Code (HMAC) with SHA-256 algorithm. Details can be found here: |
| Key | Format | CND | Description |
|---|---|---|---|
| UserData | ans..1024 | O | If specified at request, Paygate forwards the parameter with the payment result to the shop. |
| Key | Format | CND | Description |
|---|---|---|---|
| ReqId | ans..32 | O | To avoid double payments or actions (e.g. by ETM), enter an alphanumeric value which identifies your transaction and may be assigned only once. If the transaction or action is submitted again with the same ReqID, Computop Paygate will not carry out the payment or new action, but will just return the status of the original transaction or action. Please note that the Computop Paygate must have a finalized transaction status for the first initial action (authentication/authorisation). This does not apply to 3-D Secure authentications that are terminated by a timeout. The 3-D Secure Timeout status does not count as a completed status in which the ReqID functionality on Paygate does not take effect. Submissions with identical ReqID for an open status will be processed regularly. Notice: Please note that a ReqID is only valid for 12 month, then it gets deleted at the Paygate. |
| Key | Format | CND | Description | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Capture | an..6 | OM | Determines the type and time of capture.
|
Key | Format | CND | Description |
|---|---|---|---|
OrderDesc | ans..100 | M | Description of purchased goods, unit prices etc. |
| RTF | a1 | O | „I“ for initializing recurrent payments |
CCNr | n..19 | M | Pseudo card number |
CCExpiry | n6 | M | Credit card expiry date (YYYYMM), e.g. 202807 |
CCBrand | a..22 | M | Card brand: only VISA, MasterCard, AMEX, Diners, RuPay. Please note the spelling! |
TokenExt | an..64 | M | Token for referencing the credit card data with PayU |
TransactionID | ans..64 | M | TransactionID from PayU which is returned with the initial payment (RTF=I) |
CustomerID | ans..128 | O | Customer number. If customer number is not submitted instead the email address is transferred to PayU. The customer number is used to identify the customer in order to be able to select credit card data which might be stored with PayU. |
ans..128 | C | Email address of the customer Mandatory in case Provider=PayU India | |
Phone | ans..40 | C | Customer’s phone number Mandatory in case Provider=PayU India |
The following table describes the result parameters with which the Computop Paygate responds to your system pls. be prepared to receive additional parameters at any time and do not check the order of parameters
the key (e.g. mid, RefNr) should not be checked case-sentive
| Key | Format | CND | Description |
|---|---|---|---|
ans..30 | M | MerchantID, assigned by Computop |
| Key | Format | CND | Description |
|---|---|---|---|
| PayID | an32 | M | ID assigned by Paygate for the payment, e.g. for referencing in batch files as well as for capture or credit request. |
| Key | Format | CND | Description |
|---|---|---|---|
| XID | an32 | M | ID for all single transactions (authorisation, capture, credit note) for one payment assigned by Paygate |
| Key | Format | CND | Description |
|---|---|---|---|
| TransID | ans..64 | M | TransactionID provided by you which should be unique for each payment |
| Key | Format | CND | Description |
|---|---|---|---|
| refnr | ans..30 | O | Merchant’s unique reference number |
| Key | Format | CND | Description |
|---|---|---|---|
| Status | a..50 | M | OK or AUTHORIZED (URLSuccess) as well as FAILED (URLFailure) |
| Key | Format | CND | Description |
|---|---|---|---|
| Description | ans..1024 | M | Further details in the event that payment is rejected. Please do not use the Description but the Code parameter for the transaction status analysis! |
| Key | Format | CND | Description |
|---|---|---|---|
| Code | an8 | M | Error code according to Paygate Response Codes (A4 Error codes) |
Key | Format | CND | Description |
|---|---|---|---|
| CodeExt | ans..10 | O | Error code from PayU, if agreed with Computop Helpdesk |
| ErrorText | ans..256 | O | Error text from PayU, if agreed with Computop Helpdesk |
| Key | Format | CND | Description |
|---|---|---|---|
| UserData | ans..1024 | O | If specified at request, Paygate forwards the parameter with the payment result to the shop. |
Key | Format | CND | Description |
|---|---|---|---|
| Channel | a..5 | M | Name of payment category to be used with the following possible values: ‘NB’ for Net Banking, ‘CC’ for Credit Card, ‘DC’ for Debit Card, ‘CASH’ for Cash Card, ‘EMI’ for EMI, ‘wallet’ for PayUMoney, ‘IVR’ for IVR, ‘COD’ for Cash On Delivery |
| BankCode | a..5 | M | Identification of the payment option used for the transaction: VISA, MAST, SAME, MAES, RUPAY, CC, AMEX, DINR |
| Brand | a..5 | C | Specific card type: VISA, MAST, SAME, MAES, RUPAY, CC, AMEX, DINR |
Credit with reference
Credits (refunds) are possible via a Server-to-Server connection. For a Credit with reference to a capture the amount of the Credit is limited to the amount of the previous capture. To carry out a credit with a reference transaction, please use the following URL:
https://www.computop-paygate.com/credit.aspx |
For PayUIndia as Provider, credits (refunds) are asynchronous. This means that PayU Hub can respond with status "Refund Request Queued" for credit (refund) request. After credit (refund) processing, PayU Hub will send additional notification with results of the processing. Paygate will forward the additional notification to the merchant.
Notice: For security reasons, Computop Paygate rejects all payment requests with formatting errors. Therefore, please use the correct data type for each parameter. The following table describes the encrypted payment request parameters:
| Key | Format | CND | Description |
|---|---|---|---|
ans..30 | M | MerchantID, assigned by Computop. Additionally this parameter has to be passed in plain language too. |
| Key | Format | CND | Description |
|---|---|---|---|
| PayID | an32 | M | ID assigned by Paygate for the payment to be credited |
| Key | Format | CND | Description |
|---|---|---|---|
| TransID | ans..64 | M | TransactionID provided by you which should be unique for each payment |
| Key | Format | CND | Description |
|---|---|---|---|
| Amount | n..10 | M | Amount in the smallest currency unit (e.g. EUR Cent). Please contact the Computop Helpdesk, if you want to capture amounts <100 (smallest currency unit). |
Key | Format | CND | Description |
|---|---|---|---|
Currency | a3 | M | Currency, three digits DIN / ISO 4217, e.g. EUR. Presently only INR, USD, GBP, CAD, EUR, AED, QAR, OMR, SGD, AUD, HKD permitted. Please find an overview here: A1 Currency table |
| Key | Format | CND | Description |
|---|---|---|---|
an64 | M | Hash Message Authentication Code (HMAC) with SHA-256 algorithm. Details can be found here: |
| Key | Format | CND | Description |
|---|---|---|---|
| ReqId | ans..32 | O | To avoid double payments or actions (e.g. by ETM), enter an alphanumeric value which identifies your transaction and may be assigned only once. If the transaction or action is submitted again with the same ReqID, Computop Paygate will not carry out the payment or new action, but will just return the status of the original transaction or action. Please note that the Computop Paygate must have a finalized transaction status for the first initial action (authentication/authorisation). This does not apply to 3-D Secure authentications that are terminated by a timeout. The 3-D Secure Timeout status does not count as a completed status in which the ReqID functionality on Paygate does not take effect. Submissions with identical ReqID for an open status will be processed regularly. Notice: Please note that a ReqID is only valid for 12 month, then it gets deleted at the Paygate. |
Key | Format | CND | Description |
|---|---|---|---|
| OrderDesc | ans..100 | O | Description of refunded goods, unit prices, merchant’s comment etc. |
The following table describes the result parameters with which the Computop Paygate responds to your system pls. be prepared to receive additional parameters at any time and do not check the order of parameters
the key (e.g. mid, RefNr) should not be checked case-sentive
| Key | Format | CND | Description |
|---|---|---|---|
ans..30 | M | MerchantID, assigned by Computop |
| Key | Format | CND | Description |
|---|---|---|---|
| PayID | an32 | M | ID assigned by Paygate for the payment, e.g. for referencing in batch files as well as for capture or credit request. |
| Key | Format | CND | Description |
|---|---|---|---|
| XID | an32 | M | ID for all single transactions (authorisation, capture, credit note) for one payment assigned by Paygate |
| Key | Format | CND | Description |
|---|---|---|---|
| TransID | ans..64 | M | TransactionID provided by you which should be unique for each payment |
| Key | Format | CND | Description |
|---|---|---|---|
| Status | a..50 | M | OK (URLSuccess) or FAILED (URLFailure) |
| Key | Format | CND | Description |
|---|---|---|---|
| Description | ans..1024 | M | Further details in the event that payment is rejected. Please do not use the Description but the Code parameter for the transaction status analysis! |
| Key | Format | CND | Description |
|---|---|---|---|
| Code | an8 | M | Error code according to Paygate Response Codes (A4 Error codes) |
Key | Format | CND | Description |
|---|---|---|---|
| CodeExt | n..10 | O | Error code from PayU, if agreed with Computop Helpdesk |
| ErrorText | ans..256 | O | Error text from PayU, if agreed with Computop Helpdesk |

