PayPal - "Security error - Security Header is Not Valid"

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    Asked on June 18, 2015 at 01:31 AM



    I'm trying to set up a form which can accept PayPal Payments however I get this Error message when the form is submitted.


    What does this mean and how do I fix it?



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    Answered on June 18, 2015 at 03:20 AM

    Most likely issue here Header is that your API credentials are not correct. For example, you might have an extra character, a wrong character or less characters added for API credentials, which causes this.

    Once you add correct details you should no longer see any errors shown.

    Hope this will help. Let us know if you need further assistance.