E-Commerce Payment Integration: How to Set Up Credit Card and Bank Transfer Methods

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"I want to accept both credit card payments and bank transfers on my site, but how do I set up e-commerce payment integration?" This is one of the most frequent questions asked after completing a website build. If you sell products or services, a smoothly connected payment system is essential to prevent customers from dropping out during checkout. Today, we will walk you through the process of adding various payment methods and configuring currencies on a site built with ROYJU.
Characteristics of Payment Methods and What to Prepare
To accept payments on your website, you need to decide which transaction methods to use. It is best to consider domestic favorites like credit card payments and bank transfers, alongside global options if you want to reach international customers. Since each method involves a slightly different integration process and specific requirements, understanding them in advance is the shortcut to minimizing mistakes.
- Credit Card Processing (PayApp): A system that allows easy transactions using locally issued cards. The checkout window appears cleanly even on mobile environments, and it requires no complex software installation, making it a favorite among small business owners.
- International Payments (PayPal): Essential if you run multilingual pages in English, Japanese, or other languages and cater to international buyers. It integrates smoothly to process amounts charged in US Dollars, Japanese Yen, and other currencies securely.
- Bank Transfer: A method where customers send funds directly after receiving virtual or standard account number details. You can verify whether a deposit is complete manually or automatically in the administrator page and update the order status.

Steps to Configure Payment Integration in the Admin Dashboard
In the ROYJU management mode, you can attach a payment system with just a few clicks and inputs without complex coding. Here are the steps to configure it yourself without hiring an external developer:
- Navigate to the payment and shopping settings section in the admin menu.
- Select and activate the payment methods you plan to use (PayApp, PayPal, bank transfer).
- Accurately enter the merchant ID or integration key issued by each payment gateway or provider into the blank fields.
- Conduct a test transaction to verify that there are no errors in the actual money transfer process.
Currency Display Settings and Operating a Global Store
If your site attracts international visitors as well as domestic ones, the ability to display different currencies is crucial. With ROYJU, you can set currency symbols to change automatically according to language settings such as Korean, English, and Japanese.
| Setting Item | Supported Content | Primary Target Audience |
|---|---|---|
| Korean Won (KRW) | Domestic cards, bank transfers, PayApp | Domestic-focused services and products |
| US Dollar (USD) / Japanese Yen (JPY) / Euro (EUR) | PayPal and international payment integration | Global services, items with international shipping |
If currencies are displayed incorrectly, customers might misunderstand prices and abandon their purchase. Therefore, you must accurately designate the base currency unit to match your target customer base. Since you can easily switch it via a drop-down menu on the admin screen, make sure to check this before opening.
Final Checklist to Review After Payment Integration
Completing payment integration does not mean the work is done. You must check whether order details are properly accumulating in the admin dashboard and if notifications arrive correctly when customers actually make transactions. In particular, it is a good idea to test directly on a smartphone to ensure new windows pop up normally when tapping the payment button on mobile devices.
At first, the term payment integration might feel daunting, but once you complete the setup step by step, you will have a sturdy online store built with your own hands. If you have questions during operation or want to refine your settings further, check out the required features directly at AI Website Builder.
FAQ
Is a separate payment gateway contract strictly required to integrate credit card payments?
By integrating simplified payment services like PayApp supported by ROYJU, you can reduce complex paperwork procedures and quickly add credit card payment features to your site.
Can I accept US Dollar and Japanese Yen payments simultaneously for international visitors?
Yes, by utilizing PayPal integration and multilingual setting features together, you can configure currencies and checkout screens to change automatically based on the visitor's country.
Where can I check exact usage rates or transaction processing fees?
You can view detailed pricing structures regarding platform usage on the pricing information page.
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