Mrkay Posted October 19, 2012 Share Posted October 19, 2012 I got the following Paypal error message when a customer tried to make an order on my shopping cart. Error reporting from your PayPalAPI module A client has encountered a problem with the module PayPalAPI, see the report: PayPal response: TIMESTAMP -> 2012-10-18T17:27:08Z L_ERRORCODE0 -> 10002 L_SHORTMESSAGE0 -> Security error L_LONGMESSAGE0 -> Security header is not valid L_SEVERITYCODE0 -> Error PayPal returned error Any ideas? Thanks in advance. Link to comment Share on other sites More sharing options...
Valérie Assetskaya Posted October 19, 2012 Share Posted October 19, 2012 Hello, If you get an error «Security header is not valid», the most likely there are some wrong settings for MerchantProfile Best regards Link to comment Share on other sites More sharing options...
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