New to the community? Welcome! Please read our Community Rules and Guidelines
If you want to report illegal content under the EU Digital Services Act, please do so here
I have follow all steps in setting the API credentials for the Payment, but I still received this error message when I try to make payment. The actual message is :
Security header is not valid
(Transaction Error) something is wrong.
Hope anyone can help me solve this issue.
It happens. Hit the "Login to Ask the community" button to create a question for the PayPal community.
