# Auxiliary procedures and additional capabilities {#en_PP_Additional .concept}

Articles about auxiliary procedures and additional capabilities of Payment Page for boosting payment acceptance rates, customer convenience, and the quality of the provided services.

This subsection provides the information about various *procedures* and *capabilities*. While the procedures can be run automatically during the Payment Page operation for processing separate payments and affect user scenarios, the capabilities can be implemented upon the merchant request for improving the provided service.

## Boosting payment acceptance rates {#section_pv1_qq1_dtb .section}

The procedures and capabilities that can help to ensure high acceptance rates:

-   [3‑D Secure authentication](en_pp_3ds.md)—about the procedure of performing customer authentication for processing card payments.
-   [Checking with Address Verification Service](en_PP_avs.md)—about the procedure of specifying customers' postal codes and addresses for processing payments with the use of the cards American Express,Mastercard, and Visa.
-   [Submission of additional payment information](en_pp_clarification.md)—about the procedure of specifying additional data that can be requested by payment systems in certain cases.
-   [Payment retries](en_PP_Try_Again.md)—about the capability of providing the customers with additional payment attempts \(in case of other attempts failure\), including the capability of changing the payment method.
-   [Cascade payment processing](en_pp_cascading.md)—about the capability of making additional payment processing attempts \(when relevant\), without changing the payment method.
-   [Collecting customer data](en_PP_Gathering_customer_data.md)—about the capability of obtaining and providing customer additional information. This can help to avoid the implementation of some auxiliary procedures.

## Improving customer experience {#section_zdq_tjf_dtb .section}

The capabilities that can be used for adjusting payment scenarios to different situations:

-   [Interface language support](en_PP_WigetLanguages.md)—about the capabilities of specifying the language used when the payment form is displayed.
-   [Preselecting payment methods](en_PP__PreselectingPS.md)—about the capability of specifying a certain payment method when opening the payment form.
-   [Managing payment methods availability](en_pp_methods_availability.md)—about the capability of displaying to the customers not all but only the relevant payment methods from the ones available for the project.
-   [Arranging payment methods on the page](en_pp_methods_order.md)—about the capability of arranging payment methods to be presented to the customer in the optimal order.
-   [Saving customer payment data](en_PP_saved_data.md)—about the capabilities of saving and using the customer payment data when working with the payment form.
-   [Payments by using tokens](en_PP_Payment_by_token.md)—about the capability of using payment data tokens for shortening the customer payment scenarios.
-   [Currency conversion](en_pp_currency_conversion.md)—about the capability of processing payments in different currencies with currency conversion.
-   [Currency choice in Payment Page](en_pp_currency_choice.md)—about the capability of enabling customers to choose payment currency that fits their needs.
-   [Supporting sustainable payments](en_pp_ekko_earth.md)—about the capability of making financial contributions to environmental projects via the specialised partner service of the [ekko](https://ekko.earth/) platform.

## Supporting specific scenarios of working with the form {#section_w5j_ftf_dtb .section}

The capabilities of adapting the payment form to different industries, types of business, and particular cases:

-   [Debt repayment](en_PP_debt_repayments.md)—about the capability of using the payment form for accepting loan and credit repayments.
-   [Limiting time for working with payment form](en_pp_time_limit.md)—about the capability of setting the time limit for making a purchase.
-   [Specifying extended purchase data for subsequent merchant use](en_pp_additional_data.md)—about the capability of passing relevant purchase information to be used by merchants at their discretion.

## Monitoring payment form usage {#section_src_3zf_dtb .section}

The capabilities of obtaining and processing the information about various interface events related to the payment form and customer actions in this form—[Handling events in Payment Page](en_pp_ui_monitoring.md).

## Informing customers {#section_dyv_q1g_dtb .section}

The information about the capabilities that can be used for informing customers:

-   [Using dynamic merchant descriptor](en_pp_descriptor.md)—about the capability of providing customers with information about merchants via issuer services.
-   [Sending receipts and notifications to customer](en_PP_receipt_data.md)—about the capability of informing customers about payment processing and related events via email notifications.

-   **[3‑D Secure authentication](en_pp_3ds.md)**  
An article about the procedure of authenticating customers with the use of the 3‑D Secure protocol for processing card payments via Payment Page.
-   **[Checking with Address Verification Service](en_PP_avs.md)**  
An article about the procedure of verifying customers' postal codes and addresses for processing American Express, Mastercard, and Visa payments via Payment Page.
-   **[Submission of additional payment information](en_pp_clarification.md)**  
An article about the procedure of specifying additional data that can be requested by payment systems during payment processing via Payment Page.
-   **[Payment retries](en_PP_Try_Again.md)**  
An article about the capability of providing customers with additional payment attempts via Payment Page if the previous attempt to pay has failed, with the option to select the payment method.
-   **[Cascade payment processing](en_pp_cascading.md)**  
An article about the capability of making additional attempts to process a payment via Payment Page if the previous attempt has failed, without changing the payment method initially selected.
-   **[Collecting customer data](en_PP_Gathering_customer_data.md)**  
An article about the capability of obtaining and using additional customer information during payment processing via Payment Page to minimise the need for auxiliary procedures.
-   **[Interface language support](en_PP_WigetLanguages.md)**  
An article about the capabilities of specifying the language used when the payment form is displayed.
-   **[Preselecting payment methods](en_PP__PreselectingPS.md)**  
An article about the capability of preselecting a specific payment method when invoking the payment form.
-   **[Managing payment methods availability](en_pp_methods_availability.md)**  
An article about the capability of configuring payment method selections relevant to each payment form invocation.
-   **[Arranging payment methods on the page](en_pp_methods_order.md)**  
An article about the capability of arranging payment methods on the form to be presented to the customer in the optimal order.
-   **[Saving customer payment data](en_PP_saved_data.md)**  
An article about the capabilities of saving and using the customer payment data when working with the payment form.
-   **[Payments by using tokens](en_PP_Payment_by_token.md)**  
An article about the capability of using payment data tokens to reduce the number of steps in customer payment scenarios.
-   **[Currency conversion](en_pp_currency_conversion.md)**  
An article about the capability of processing payments via Payment Page in different currencies with currency conversion.
-   **[Currency choice in Payment Page](en_pp_currency_choice.md)**  
An article about the capability of letting customers choose payment currency that fits their needs in the payment form.
-   **[Supporting sustainable payments](en_pp_ekko_earth.md)**  
An article about the capability of adding the option to payment form workflows that allows contributing to environmental projects via the ekko partner service.
-   **[Debt repayment](en_PP_debt_repayments.md)**  
An article about the capability of using the payment form to accept loan repayments.
-   **[Limiting time for working with payment form](en_pp_time_limit.md)**  
An article about the capability of setting the time limit for making a purchase within a single payment form invocation.
-   **[Specifying extended purchase data for subsequent merchant use](en_pp_additional_data.md)**  
An article about the capability of capturing relevant purchase information via Payment Page for internal merchant use.
-   **[Handling events in Payment Page](en_pp_ui_monitoring.md)**  
An article about the capabilities of obtaining and processing the information about various interface events related to the payment form and customer actions in this form.
-   **[Using dynamic merchant descriptor](en_pp_descriptor.md)**  
An article about the capability of providing customers with information about merchants via issuer services.
-   **[Sending receipts and notifications to customer](en_PP_receipt_data.md)**  
An article about the capability of informing customers about payment processing and related events via email notifications.

**Parent topic:**[Payment Page](en_PP_about.md)