- stormqbAsked on December 26, 2013 at 10:28 AM
Customers get an error stating "Security error- Security Header is not valid" when they try to submit payment.Page URL:
- EliezerNAnswered on December 26, 2013 at 11:38 AM
This error has happened to other users in the past too and one of the causes of this issue is because they had entered incorrect API login credentials. So, please make sure that you are entering the correct API username, password, and signature.
If your API login is incorrect, make sure to correct it and then test your form again.
Please inform us if you need further assistance with this.