Auxiliary procedures

This section provides the information about the procedures that can be required for processing certain payments.

• 3‑D Secure authentication—about customer authentication with the use of protocols 3‑D Secure 1 and 3‑D Secure 2 for ensuring secure payment processing.
• 3‑D Secure authentication on merchant side—about an additional variant of customer authentication with the use of the 3‑D Secure protocol on the merchant web service side.
• Authentication on merchant's request—about the procedure of additional customer authentication that can be used as an alternative to the 3‑D Secure authentication and is performed upon the merchant's request.
• Submission of additional payment information—about the procedure of providing additional data that can be requested by payment systems in separate cases.
• Currency conversion—about processing payments in different currencies for the customer and the merchant with the conversion involved.