Worldpay cnpAPI Reference Guide API 12.11, V2.13

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The Worldpay cnpAPI Reference Guide is a comprehensive reference for the Worldpay eComm cnpAPI 12.x schema version, and includes information on transaction formats used for card-not-present processing with Worldpay. The cnpAPI reference guide also includes feature overviews, information for testing and certification, XML examples, and a complete data dictionary. This document is intended for technical personnel who will be setting up and maintaining payment processing using the cnpAPI format. A PDF download of this guide is available at the bottom of the page.

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Worldpay_eComm_cnpAPI_Reference_Guide_APIV12.11_V2.13.pdf5.1 MB

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hnearhood Apr 3, 2019 10:49 AM

Thanks for preparing this documentation.

Can we also have access to the XSD for this version?

Thanks,

Hilde

1 person found this helpful

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bfinn @ hnearhood on Apr 3, 2019 12:54 PM

Hi Hilde,

Please send an e-mail to brenda.finn@worldpay.com and I will send the latest 12.8 cnpAPI schema files to you directly.

-Brenda

2 people found this helpful

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pbreit Nov 18, 2019 10:04 AM

Do we really need to wait for one minute to reverse and authorization?

"For Online transactions, when following an Authorization with an Auth Reversal, allow a minimum of one minute between the transactions."

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tboumil @ pbreit on Nov 18, 2019 11:47 AM

Hi Patrick,

In the vast majority of cases, a one minute wait is not necessary. This advice was introduce some years ago, because a particular merchant was sending a Reversal immediately after submitting the Auth. Because they did it so quickly, the info from the approved Auth did not have enough time to persist in our database, so the transaction they were trying to reverse could not be found in the database. Normally, the time this takes is very small, but is influenced by a number of factors, such as platform load, replication across multiple servers/databases/locations. etc. Although this was an edge case (and the only time I ever saw it happen), we elected to eliminate the possibility of it ever happening again by suggesting the one minute wait between transactions.

You can elect to try the reversal as soon as you like and it will probably succeed. If it fails with a "Transaction not found" response, I would wait a little bit and try it again. Please note that this is only my opinion and we still advise waiting the one minute.

Tom

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4 Comments

hnearhood Apr 3, 2019 10:49 AM
Thanks for preparing this documentation.

Can we also have access to the XSD for this version?

Thanks,
Hilde
1 person found this helpful
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- bfinn @ hnearhood on Apr 3, 2019 12:54 PM
  Hi Hilde,
  
  Please send an e-mail to brenda.finn@worldpay.com and I will send the latest 12.8 cnpAPI schema files to you directly.
  
  -Brenda
  2 people found this helpful
  Like • Show 0 Likes0
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pbreit Nov 18, 2019 10:04 AM
Do we really need to wait for one minute to reverse and authorization?

"For Online transactions, when following an Authorization with an Auth Reversal, allow a minimum of one minute between the transactions."
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- tboumil @ pbreit on Nov 18, 2019 11:47 AM
  Hi Patrick,
  
  In the vast majority of cases, a one minute wait is not necessary. This advice was introduce some years ago, because a particular merchant was sending a Reversal immediately after submitting the Auth. Because they did it so quickly, the info from the approved Auth did not have enough time to persist in our database, so the transaction they were trying to reverse could not be found in the database. Normally, the time this takes is very small, but is influenced by a number of factors, such as platform load, replication across multiple servers/databases/locations. etc. Although this was an edge case (and the only time I ever saw it happen), we elected to eliminate the possibility of it ever happening again by suggesting the one minute wait between transactions.
  
  You can elect to try the reversal as soon as you like and it will probably succeed. If it fails with a "Transaction not found" response, I would wait a little bit and try it again. Please note that this is only my opinion and we still advise waiting the one minute.
  
  Tom
  Like • Show 0 Likes0
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Worldpay cnpAPI Reference Guide API 12.11, V2.13

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