Topics covered on this page
Accept payments through Opn on your Shopify-based online store. No programming required.
Supported payment methods
Credit and Debit Cards
DuitNow Online Banking/Wallets
Bangkok Bank (Bualuang mBanking)
KBank (K PLUS)
Krungthai (KTB NEXT)
SCB (SCB Easy)
Rabbit Line pay
Touch 'n Go
Do you need a payment method not currently supported? Please contact support.
Installing the Opn Payments App and connecting it to your live account.
Run these steps each time you roll your keys to reconnect the Opn Payments App with your Shopify account. If you do not reconnect the Opn Payments App with your Shopify account, you will not be able to accept payments.
On your Opn Payments Dashboard, select Settings > Third Party Integrations.
Read the instructions and click Install app. (Steps to install and connect the app to your live account will also be provided on Third Party Integrations page)
You will be redirected to the Shopify Admin login screen to install the app on your Shopify store. Proceed to login to your Shopify store admin.
- Enter your Shopify email address
- Click Next.
- Enter Password and click login
Click Install app.
You will be redirected to our dashboard’s Third Party Integrations page to confirm if you want to connect the app to your team and account (Select another team if necessary). Click Confirm to continue.
Wait for about 3 seconds, then you will be redirected to the Shopify Admin screen.
To finish the set up:
- Select the supported payment methods
- Deselect Enable test mode
- Click Activate Opn Payments to enable this new payment method in your Shopify checkout
Deactivating the deprecated 'Opn payment (Credit/debit cards)' payment method
Click Settings, choose Payments, select Opn payment (Credit/debit cards), click Manage
Click Deactivate Opn payment (Credit/debit cards) to remove this payment from your store’s Shopify checkout.
Switch Account Mode
- Switch Opn Payments Dashboard to the required mode (Test/ Live Mode)
- Browse to the Shopify Admin screen
- Select Settings
- Select Payment
- Click Manage from the Supported Payments section.
Select Manage from the Account Status screen.
From the Third Party Integrations screen, click Confirm to connect the application to your team and account.
From the Shopify Admin Setting screen:
Toggle the Enable test mode option.
Click Save to save the settings.
Manual Capture of Payments
For payment methods that do not support manual capture, such as truemoney and installments, when the store is set to manual capture, when a customer makes a payment, the order is shown as not paid on Shopify (capture is pending), even though the charge is successful (captured).
To resolve this situation, merchants need to perform a manual capture, as follows:
From the Shopify backend, navigate to the transaction and click Capture Payments.
Enter the amount in full, and click Accept.
Note: Merchants who have setup their store for manual capture, need to capture the charges fully, before proceeding to cancel the order, if needed.
If you would like to process 3DS (also known as 3-D Secure) charges, please contact support to enable 3DS on your account. This plugin automatically supports processing both 3DS and non-3DS charges.
If you're having issues with this plugin, please contact support.