Why does PayPal checkout not work?
There are many reasons why a student may encounter an error message while using the PayPal checkout - they could be seeing an error due to insufficient funds, a processing issue or outage on PayPal's side, the student's bank blocking the purchase for security reasons, or a number of other reasons.
How does PayPal checkout work?
PayPal Checkout, explained
Instead, on sites with PayPal Checkout enabled, they can simply log in with their PayPal username and password, select the payment method already connected to their PayPal account, and that's it — purchase completed.
How do I activate PayPal checkout?
If you sign up a new account, make sure you confirmed your email address with PayPal and your account is ready to accept payments. After you have connected your PayPal account, Click on "Enable PayPal Checkout" and customize the PayPal buttons and other settings for your store.