You might encounter the error message 'Security Header not Valid' if you have not entered your credentials with the Payment Gateway correctly & the Payment Gateway is unable to authenticate your credentials.
The resolution is to verify your credentials on your Payment Gateway Account and to re-enter the information. Make sure you remove the spaces before and after if you are trying to copy the information and paste it. We recommend that you first paste the information into a text editing program such as Notepad etc to ensure that there are no extra spaces.
Don’t have Yapsody account? Sign up now and sell your first 50 tickets with NO ticketing fee & collect money directly in your favourite Payment gateway account.
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