Security header is not valid

  • 4ndesign

    (@4ndesign)


    11 years, 12 months ago

    I am trying to connect my PayPal Pro to WP E-Commerce. I pasted API username, password, and signature to the store payment tab. Test mode is not checked. I get the following error “Security header is not valid”. I searched online and people suggest that that error comes up when the API for the wrong environment is used. I am using API from PayPal Pro account (not the test Sandbox one). I tried re-issuing APIs, triple checked for extra spaces, switched to the sandbox mode and back. Nothing seems to work. Here is the URL:

    https://www.westernblotservice.com/

    Just click Order Now under Order Form to be taken to the check out page. Any help would be gladly appreciated!

    https://ww.wp.xz.cn/plugins/wp-e-commerce/

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