PayPal integration testing

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    Asked on January 16, 2020 at 01:47 PM

    Hi there, we're trying to set up registration for a conference and aren't sure how to get our PayPal account connected properly.

    We're currently using a PayPal Pro integration on the form, and attempting to use Sandbox API credentials to test some fake credit cards for our set-up purposes. After submitting the form, we get an error message that reads:

    Security error
    Security header is not valid

    Any help you can provide as to whether we're using the wrong PayPal integration, wrong API calls, etc. would be most appreciated. Thanks!

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    Answered on January 16, 2020 at 04:25 PM

    Please note that live PayPal credentials will not work for PayPal Sandbox mode. You can use accounts created through for the PayPal Sandbox mode. Please take a look at the next guide for more information:

    How to Test your PayPal Payment Form

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    Answered on January 16, 2020 at 06:56 PM

    Thanks, Mike. Will check the guide again, but think something else is hanging us up. Also have an email in to so this will surely be solved soon!