SimplePay

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SimplePay is a secure and fast payment solution for merchants and customers. The SimplePay service is available in thousands of online stores, making financial transactions possible for customers with a Simple account (who can also use their saved card) and for other online customers.

Type

Payments by eWallet

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

Comment

CND

condition

M

mandatory

If a parameter is mandatory, then it must be present

O

optional

If a parameter is optional, then it can be present, but it is not required

C

conditional

If a parameter is conditional, then there is a conditional rule which specifies whether it is mandatory or optional

MerchantID

ans..30

M

MerchantID, assigned by Computop. Additionally this parameter has to be passed in plain language too.

TransID

ans..64

M

TransactionID provided by you which should be unique for each payment

RefNr

ans..40

O

Merchant’s unique reference number

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).

Currency

a3

M

Currency, three digits DIN / ISO 4217, e.g. EUR, USD, GBP. Please find an overview here: A1 Currency table

MAC

an64

M

Hash Message Authentication Code (HMAC) with SHA-256 algorithm. Details can be found here:

• HMAC Authentication (Request)

• HMAC Authentication (Notify)

UserData

ans..1024

O

If specified at request, Paygate forwards the parameter with the payment result to the shop.

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.

OrderDesc

ans..128

M

Description of purchased goods, unit prices etc.

Permitted characters a-z, A-Z, the digits 0-9 and the special characters :;.,?!()”.

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.

Common notes:

• We recommend to use parameter "response=encrypt" to get an encrypted response by Paygate

• However, fraudster may just copy the encrypted DATA-element which are sent to URLFailure and send the DATA to URLSuccess/URLNotify. Therefore ensure to check the "code"-value which indicates success/failure of the action. Only a result of "code=00000000" should be considered successful.

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.

Common notes:

• We recommend to use parameter "response=encrypt" to get an encrypted response by Paygate

• However, fraudster may just copy the encrypted DATA-element which are sent to URLFailure and send the DATA to URLSuccess/URLNotify. Therefore ensure to check the "code"-value which indicates success/failure of the action. Only a result of "code=00000000" should be considered successful.

Response

a7

O

Status response sent by Paygate to URLSuccess and URLFailure, should be encrypted. For this purpose, transmit Response=encrypt parameter.

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 UserDataparameter instead.

Common notes:

• Before follow-up actions (capture / credit / reversal) are carried out on an existing transaction, the first Notify must have been answered by the shop.

• Fraudster may just copy the encrypted DATA-element which are sent to URLFailure and send the DATA to URLSuccess/URLNotify. Therefore ensure to check the "code"-value which indicates success/failure of the action. Only a result of "code=00000000" should be considered successful.

Email

ans..32

C

Email address of the customer

Phone

n..16

O

Customer phone number

expirationTime

ans..19

O

Timestamp for the end time of the transaction processing, specified in UTC

Language

a2

O

Language of the payment page

InvoiceFlag

boolean

C

If the billing information of the buyer is not known in the merchant system, this will allow the customer to provide this information on the payment page.

ArticleList

array

O

Articlelist1=ArticleName,ArticleCode,UnitPrice,Quantity,VAT-rate,Description

Articlelist2=ArticleName,ArticleCode,UnitPrice,Quantity,VAT-rate,Description

...

ArticlelistN=ArticleName,ArticleCode,UnitPrice,Quantity,VAT-rate,Description

ChargeAmount

n..10

O

The amount of the shipping cost specified in the currency setup in the account, which will be added to the amount payable

Discount

n..10

O

The amount of the discount specified in the currency setup in the account, which will be deducted from the amount payable

FirstName

ans..32

O

First name of the customer, if different from the value “invoice”/“name”

LastName

ans..32

O

Last name of the customer, if different from the value “invoice”/“name”

CountryCode

a2

O

Country code

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.

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.

Please find a sample here: Custom

Parameter

CND

bdFirstName

bdLastName

C

bdCompanyOrPerson

O

bdCountryCode

C

bdState

C

bdCity

C

bdZIP

C

bdStreet

bdStreetNr

C

Parameter

CND

sdFirstName

sdLastName

C

sdCompany

O

sdCountryCode

C

sdState

C

sdCity

C

sdZip

C

sdStreet

sdStreetNr

C

sdStreet2

O

sdPhone

O

mid

ans..30

M

MerchantID, assigned by Computop

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.

XID

an32

M

ID for all single transactions (authorisation, capture, credit note) for one payment assigned by Paygate

TransID

ans..64

M

TransactionID provided by you which should be unique for each payment

Status

a..50

M

OK or AUTHORIZE_REQUEST (URLSuccess) as well as FAILED (URLFailure)

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!

Code

an8

M

Error code according to Paygate Response Codes (A4 Error codes)

MAC

an64

M

Hash Message Authentication Code (HMAC) with SHA-256 algorithm. Details can be found here:

• HMAC Authentication (Request)

• HMAC Authentication (Notify)

RefNr

ans..40

O

Merchant’s unique reference number

UserData

ans..1024

O

If specified at request, Paygate forwards the parameter with the payment result to the shop.

TransactionID

an..20

O

Unique transaction number with SimplePay (orderRef)

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.

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.

Please find a sample here: Custom

MerchantID

ans..30

M

MerchantID, assigned by Computop. Additionally this parameter has to be passed in plain language too.

PayID

an32

M

ID assigned by Paygate for the payment to be captured

TransID

ans..64

M

TransactionID provided by you which should be unique for each payment

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).

Currency

a3

M

Currency, three digits DIN / ISO 4217, e.g. EUR, USD, GBP. Please find an overview here: A1 Currency table

MAC

an64

M

Hash Message Authentication Code (HMAC) with SHA-256 algorithm. Details can be found here:

• HMAC Authentication (Request)

• HMAC Authentication (Notify)

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.

CompleteType

ans..3

O

Specifies whether only a partial amount is being confirmed and authorization should be kept open. If <YES> is transferred, the possible open order is closed on capture.

mid

ans..30

M

MerchantID, assigned by Computop

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.

XID

an32

M

ID for all single transactions (authorisation, capture, credit note) for one payment assigned by Paygate

TransID

ans..64

M

TransactionID provided by you which should be unique for each payment

Status

a..50

M

OK (URLSuccess) or FAILED (URLFailure)

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!

Code

an8

M

Error code according to Paygate Response Codes (A4 Error codes)

MerchantID

ans..30

M

MerchantID, assigned by Computop. Additionally this parameter has to be passed in plain language too.

PayID

an32

M

ID assigned by Paygate for the payment to be reversed

TransID

ans..64

M

TransactionID provided by you which should be unique for each payment

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).

Currency

a3

M

Currency, three digits DIN / ISO 4217, e.g. EUR, USD, GBP. Please find an overview here: A1 Currency table

MAC

an64

M

Hash Message Authentication Code (HMAC) with SHA-256 algorithm. Details can be found here:

• HMAC Authentication (Request)

• HMAC Authentication (Notify)

UserData

ans..1024

O

If specified at request, Paygate forwards the parameter with the payment result to the shop.

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.

mid

ans..30

M

MerchantID, assigned by Computop

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.

XID

an32

M

ID for all single transactions (authorisation, capture, credit note) for one payment assigned by Paygate

TransID

ans..64

M

TransactionID provided by you which should be unique for each payment

Status

a..50

M

OK (URLSuccess) or FAILED (URLFailure)

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!

Code

an8

M

Error code according to Paygate Response Codes (A4 Error codes)

MerchantID

ans..30

M

MerchantID, assigned by Computop. Additionally this parameter has to be passed in plain language too.

PayID

an32

M

ID assigned by Paygate for the payment to be credited

TransID

ans..64

M

TransactionID provided by you which should be unique for each payment

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).

Currency

a3

M

Currency, three digits DIN / ISO 4217, e.g. EUR, USD, GBP. Please find an overview here: A1 Currency table

MAC

an64

M

Hash Message Authentication Code (HMAC) with SHA-256 algorithm. Details can be found here:

• HMAC Authentication (Request)

• HMAC Authentication (Notify)

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.

mid

ans..30

M

MerchantID, assigned by Computop

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.

XID

an32

M

ID for all single transactions (authorisation, capture, credit note) for one payment assigned by Paygate

TransID

ans..64

M

TransactionID provided by you which should be unique for each payment

Status

a..50

M

OK (URLSuccess) or FAILED (URLFailure)

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!

Code

an8

M

Error code according to Paygate Response Codes (A4 Error codes)