Knowledge Base Search Home PayPal Articles Articles for PayPal. How to Subscribe to Invoice via PayPal? How to Pay invoices Without Having a PayPal Account? How to view automatic PayPal subscriptions? How to cancel automatic PayPal subscription? How to Link a Debit or Credit Card to Your PayPal account? How to remove a Debit or Credit Card from your PayPal account? How to set a preferred payment method in PayPal?