ERROR.."* the MD5 signature could not be verified"

[Guest]

Hi, Using the Worldpay Junior Module included for OSCOMMERCE

Have included Installation ID , and set my Callback password / MD5 in the OSAdmin and same in my Worldpay Admin area

 

Keep Getting Error:

 

" The transaction cannot be processed due to the following:

 

* the MD5 signature could not be verified "

 

 

Is there something I still need to do , to get my TEST Integration working First ?

 

Any Help Appreciated !

 

Thanks

[adcuz]

I've encountered this issue before. I found it to be a problem on the Worldpay installation itself and not the module. Might be worth contact Worldpay about it.