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Answers to Common liveSite Questions

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Commerce Management, Site Management

Why do I receive an error saying "PayPal: Security header is not valid"?

The invalid security header error that you see is caused by liveSite not being able to login to your PayPal account with the API signature that you have generated. With PayPal, they require you to use one security signature for their sandbox and then another security signature for live mode.

Please make sure that the signature you are using is configured for the correct mode you are using and try again.


2 Feedbacks
Added by tafgraphics ELITE

I now have my settings on Authorize and Capture and Live...I am now getting an error that says, "...from payment gateway: This transaction cannot be processed due to an invalid merchant configuration."

We are using website payments pro.....we have the API username, pw and signature....what is the problem?
Added by Camelback Web Architects STAFF

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