# Page Not Found

The URL `portals-and-interfaces/gateway-hosted-check-out-page/customize-checkout` does not exist.

You might be looking for one of these pages:
- [Customize Checkout](https://doc.ecomm.api.tietoevry.com/e-commerce-payment-gateway/sandbox-guide/merchant-portal-home-page/settings/customize-checkout.md)
- [Merchant Portal](https://doc.ecomm.api.tietoevry.com/portals-and-interfaces/merchant-portal.md)
- [Administration Portal](https://doc.ecomm.api.tietoevry.com/portals-and-interfaces/administration-portal.md)
- [Self-Hosted Checkout Page](https://doc.ecomm.api.tietoevry.com/e-commerce-payment-gateway/sandbox-guide/self-hosted-checkout-page.md)
- [Card payment](https://doc.ecomm.api.tietoevry.com/e-commerce-payment-gateway/sandbox-guide/self-hosted-checkout-page/card-payment.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://doc.ecomm.api.tietoevry.com/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://doc.ecomm.api.tietoevry.com/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/e-commerce-payment-gateway/sandbox-guide/merchant-portal-home-page/settings/customize-checkout.md`)
- Use `Accept: text/markdown` header for content negotiation