> Portal Navigation: > > - Append `.md` to any URL under `https://dev.wix.com/docs/` to get its markdown version. > - Pages are either content pages (article or reference text) or menu pages (a list of links to child pages). > - To get a menu page, truncate any URL to a parent path and append `.md` (e.g. `https://dev.wix.com/docs/sdk.md`, `https://dev.wix.com/docs/sdk/core-modules.md`). > - Top-level index of all portals: https://dev.wix.com/docs/llms.txt > - Full concatenated docs: https://dev.wix.com/docs/llms-full.txt ## Resource: Introduction ## Article: About Payment Settings ## Article Link: https://dev.wix.com/docs/api-reference/business-solutions/e-commerce/payments/payment-settings/introduction.md ## Article Content: # About Payment Settings Payment Settings enable businesses to customize and configure payment processing behavior through integration service plugins. This functionality allows developers to inject custom payment logic, validation rules, and configuration settings into the eCommerce payment flow, ensuring compliance with specific business requirements and payment processing standards. This section covers: - **[Payment Settings Integration Service Plugin](https://dev.wix.com/docs/rest/business-solutions/e-commerce/payments/payment-settings/payment-settings-integration-service-plugin/introduction.md)**: Integrate custom payment settings and validation logic with the Wix eCommerce platform to modify payment processing behavior. ## See also - [About Payments](https://dev.wix.com/docs/rest/business-solutions/e-commerce/payments/introduction.md) - [About Checkout](https://dev.wix.com/docs/api-reference/business-solutions/e-commerce/purchase-flow/checkout/checkout/introduction.md) - [Extend the eCommerce Platform with Service Plugins](https://dev.wix.com/docs/rest/business-solutions/e-commerce/guides/extend-the-e-commerce-platform-with-service-plugins.md)