WorldPay test transaction

[fran@lifi]

I am trying to configure WorldPay on my site. I've entered the ID and secret key provided by WorldPay but am still getting this message when I try to complete a test transaction.

Secure Payment Page
Sorry, there was an error in processing this transaction: The information
sent from the merchant's site is invalid or incomplete. Please send the
following information to the merchant:
The transaction cannot be processed due to one or more of the following:
* the installation ID field is blank or contains invalid characters
* a different submission protocol is required. For instance, a more
secure submission may be required
* the installation number is invalid

I've been all through Actinic HELP and the WorldPay support pages but can't work out where I've gone wrong. Any ideas?

Frances White

[TraceyG]

Hi,

When you registered for Worldpay, did you tell them that you were using Actinic as our integration uses a different gateway to their other customers?

[fran@lifi]

Hi
Yes , I did tell them I was using Actinic. They're insisting now that I'm not using the correct Merchant ID - but I've checked and double-checked that the one they gave me is correct in Business Settings / Payment and Security/ WorldPay/ Configure method. Is there anywhere else I need to set it in Actinic? Also do I need to upgrade with the
v8.5.3 payment gateway patch?
My site was actually working already when I bought it - but using a different payment method. Perhaps this is causing a problem?
Thanks
Frances
Update May 31st
The problem seems to be sorted now ( not quite sure how?) So - fingers crossed! I have taken my first order at last. Thanks for your advice.
Frances
www.li-fi.co.uk for quality ladies swimwear

[TraceyG]

Is there anywhere else I need to set it in Actinic?

No, with Worldpay you only need to set the Merchant ID and the Secret Key in the 'Configure Method' window.

Also do I need to upgrade with the v8.5.3 payment gateway patch?

There haven't been any changes to the Worldpay integration, so that shouldn't make a difference. However, if you are using v8.5.3 it wouldn't hurt to install it.

Have you tried a 'Help | Troubleshooting | Purge & Refresh'?

They're insisting now that I'm not using the correct Merchant ID

A last thought would be that they could maybe supply you with a new Merchant ID, that you could enter and then refresh your site.