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

  • lwjunior2
    Asked on June 18, 2015 at 1:31 AM

    Hello.

     

    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?

     

    Regards

  • BJoanna
    Replied on June 18, 2015 at 3:20 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.

    PayPal   Security error   Security Header is Not Valid Image 1 Screenshot 20

    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.