# PayPal

- [Which type of PayPal account do I need?](./paypal/which-type-of-paypal-account-do-i-need.md)
- [PayPal : Can a customer pay without a PayPal account?](./paypal/paypal-can-a-customer-pay-without-a-paypal-account.md)
- [Can I accept credit or debit card payments with PayPal?](./paypal/can-i-accept-credit-or-debit-card-payments-with-paypal.md)
- [How to find my Live PayPal username, password and signature? Where can I find my PayPal API credentials?](./paypal/how-to-find-my-live-paypal-username-password-and-signature-where-can-i-find-my-paypal-api-credential.md)
- [How to test payments with PayPal? What is Sandbox mode? How to create a Sandbox account?](./paypal/how-to-test-payments-with-paypal-what-is-sandbox-mode-how-to-create-a-sandbox-account.md)
- [PayPal error: Security header is not valid](./paypal/paypal-error-security-header-is-not-valid.md)