How to Enable Thai Payments for Your Shopify Website?

Enabling Thai payments for your Shopify site requires integrating popular local payment methods and ensuring compliance requirements are met. Below is a detailed step-by-step guide:

I. Mainstream Thai payment methods

1. Bank transfer/Internet banking payments

   • Recommended Service Providers::
     • Omise (PromptPay support)
     • 2C2P (supports major bank transfers in Thailand)
   • specificities: PromptPay is an instant money transfer system launched by the Bank of Thailand, covering users above 80%.

2. electronic wallet (e.g. for money)

   • TrueMoney Wallet: Over 30 million users, access is required through official TrueMoney or third-party gateways (e.g. 2C2P).
   • Rabbit Line Pay: Deeply tied to the Line App for younger users.

3. Credit cards/instalments

   • Visa/MasterCard support through Shopify Payments or third party gateways (e.g. Stripe, Adyen).
   • Note: Thais prefer to pay in instalments, so consider local schemes such as KBank's "K-Payment".

4. Convenience store cash payments

   • Collections through Counter Service or Thai Post outlets require access to a service provider such as Omise or AirPay.

5. Cross-border solutions (for international merchants)*
   Examples include Alipay+, WeChat Pay TH version

II. Specific operational steps

(1) Shopify Backend Settings

1. go into Settings > Payments.
2. Select "Third Party Payment Providers" to search for any of the following service providers:

• Omise:
• AsiaBill:

(3) API key configuration

Get the merchant ID and API key and fill in the corresponding fields in the Shopify backend to test whether the transaction is successful or not.

(4) Currency and Pricing Strategy

We recommend using THB to avoid exchange rate disputes.

Settings > Store Currency > Thai Baht (THB)

III. Key considerations

✅ Fee Comparison: PromptPay rate is usually 0%-1%, Credit Card is about 3%+.

✅Required Qualifications.
-Proof of company registration (some gateways require a local entity).

✅User Experience Optimisation.
Add Thai instructions and customer service LINE ID to the checkout page.

For further assistance, contact me for a specific list of gateway recommendations!

Okay, next I'll add more details on advanced configuration, compliance points, and optimisation strategies for payment integrations in Thailand to help you maximise conversions:

IV. Advanced allocation and risk control

1. Multi-gateway combination programme (for high denial-of-payment industries)

• High-risk commodities (e.g. electronics)::
  Use "Credit Card + PromptPay Dual Track System" to guide Thai users to prioritise PromptPay to reduce Chargeback risk.
  • implementation method: Hide the credit card option on the Shopify checkout page via 'conditional logic' (requires modifying the Liquid template or using an app such as [Bold Commerce]).

2. Integration of instalments

• Recommended Localisation Solutions::
  • KBank K-Payment Plan]: Through 2C2P access, it offers 3/6/12 interest-free instalments.
  • Krungsri Flexi]: Separate merchant account is required, suitable for high price-per-unit shops (>5,000 THB).
• take note of: Add the staging logo (e.g. "แบ่งชำระได้ 0%") prominently on the product page.

3. COD cash on delivery (COD) risk control

If convenience store cash collection/Cash on Delivery is enabled:

• Automatically block high-risk orders::
  Install the Fraud Filter app and set up rules to automatically cancel the following orders:

  Example of conditions: IP not in Thailand + Order value >3000THB + New customer first purchase
  
  

V. Key points for legal compliance

(1) PDPA Data Privacy Act Requirements

• Thai PDPA requires that user payment information must be stored on servers within Thailand. Solution:
  1. ✔️ choose a payment gateway that has landed in Thailand (e.g. Omise's Bangkok data centre)
  2. ❌ Avoid using international gateways that are not localised (e.g. some Stripe versions)

(2) VAT tax treatment

VI. Conversion rate optimisation techniques

(UI/UX level)

1️⃣ Language localisation::

• Use an app such as [LangShop] to change the checkout page button text to Thai:

  "สั่งซื้อเลย" (Buy Now)
  
  "เลือกวิธีชำระเงิน" (select payment method)
  
  

2️⃣ Trust Mark Implantation::

• 
  Add the following authentication icon to Footer:
  • DBD Registration Number (ทะเบียนพาณิชย์อิเล็กทรอนิกส์)
  • SSL encryption badges

3️⃣ [AB test recommendation]:
Test two PromptPay bootstrapping scenarios:

Version A: "ใช้ PromptPay ชำระเงิน ได้ส่วนลดทันที 3%!" 

       (Get 3% discount with PromptPay)

       

Version B: "โอนผ่าน PromptPay ไม่มีค่าธรรมเนียม!"

       (PromptPay transfer 0 fee)

VII. Troubleshooting checklist

When "Payment Failure" appears, check in this order:
1️⃣ [IP Problem] Confirmation that the customer is not using a VPN (common for Chinese cross-border buyers)

2️⃣ 【Bank Restrictions】Some Thai banks will block international merchant transactions, you need to whitelist your shop domain name in advance.

3️⃣ [Amount formatting error] Ensure that the THB amount does not contain a decimal point (example: correct → 590฿ / incorrect → 590.50฿)

If you need a code snippet for a specific session or a recommendation for a scalable solution that corresponds to the Shopify App, let me know your tech stack preference (PHP/Liquid, etc.) and I'll provide targeted examples!