The Open Payment Gateway (OPG) is the core system of optile. This section provides you with FAQs concerning the OPG integration with your system.
- How do I pass my orderId/ invoiceId to the OPG?
- Magic Numbers for eMerchantPay - 3D Secure Testing
- Why did my initial payment method disappear after a failing charge?
- What is special about the integration of PayPal, Sofortüberweisung / Sofort Banking, or other "redirect networks"?
- What is special about the integration of SEPA Direct Debit?
- How do I integrate a specific payment network?