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PayPal Express Checkout Problem

Thread began 9/20/2010 10:51 am by robert222776 | Last modified 9/30/2010 7:09 am by robert222776 | 8475 views | 13 replies

9/30/2010 7:09 amRay BorduinWebAssist

"Security header is not valid" means that the username, password, or signature from paypal is not correct. Make sure you don't have any leading or trailing spaces in your paypal account information and that they are entered correctly in the powerstore admin.

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