Worldpay transaction ID change - is it a problem?

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Does anyone know if the Worldpay module for OsCommerce below is going to be affected by their transaction IDs increasing from 8 to 9 digits in the next week or two?

 

I don't see any code that seems to make such assumptions, but would value a second opinion.

 

$Id: worldpay.php,v MS1a 2003/04/06 21:30

Author : Graeme Conkie ([email protected])

Title: WorldPay Payment Callback Module V4.0 Version 1.4

 

Message from Worldpay follows...

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Out of courtesy, I wanted to provide you with some information on an event that will occur within the next two or three weeks.

 

Every successful transaction you process through WorldPay generates a unique identification number, known as a 'transId'. Currently, a transId is 8-digits long, however these are about to roll-over and so will increase to 9-digits. This increase will have no impact on WorldPay's service to you, as our systems are designed to handle up to 16 digits (as documented in our integration guides).

 

This increase will probably have no impact on your website's services. However, for peace of mind, I would suggest that if you use a Shopping cart or WorldPay's callback feature, then you should confirm whether this increase will affect your service.

 

Unfortunately, as this increase in transId will only affect your systems, we are unable to analyse or diagnose the potential problems within your website's systems, or to provide you with advice on possible solutions.

 

What should you do?

 

Check if your systems depend on 8-digit settings for the transId parameter, and if they do, then change them so that they can handle longer transId values.

 

For shopping carts:

 

check how your shopping cart handles transId values, and contact your technical expert and the provider of your shopping cart if you have any concerns.

 

For callback:

 

Check your callback settings for any dependency on 8-digit length for transId values. You may need to consult your technical expert, or those who implemented your callback features.

 

If you have any further concerns about this progression in transId value, please contact your local WorldPay Technical Support representative. However, please note that our support staff cannot analyse your callback scripts for potential problems, and cannot advise you about issues that are more suited to analysis by shopping cart experts/providers.