To start using Montonio bank payments in your Shopify store, you need to activate each payment app directly in the Shopify admin interface. This article walks you through the entire process step by step.
❗️ Important: You must have a Montonio account before you can activate bank payments in Shopify.
If you haven’t signed up yet, please create a Montonio account.
📖 Full instructions on onboarding and account setup can be found here:
1. Open the Montonio Bank Payment App Links
Each Montonio bank integration must be installed separately using a unique Shopify app link.
You can find the full list of bank app URLs here: List of Montonio Bank Payments Apps on Shopify.
Click on the link for the specific bank you want to install.
This will open the corresponding app page in Shopify.
2. Install the App
Once you’ve opened a payment app page:
Click Install to begin the setup.
Shopify will ask for confirmation — approve the permissions to continue.
3. Add Your API Keys
You’ll now be prompted to enter your API keys from Montonio. You can find your keys in the Montonio Partner System.
API keys can be accessed via the Montonio Partner System:
How to find Live API Keys in the Partner System?
There are two types of API keys:
Live API Keys – used for real transactions.
Sandbox API Keys – used for testing in test mode.
🧪 We recommend testing your integration first using sandbox keys. To do this, enable Test mode using the toggle in the app settings and then enter your sandbox keys.
4. Activate the App
After entering the keys:
Click the Activate button (black button) to finalize the setup.
Make sure to Save changes.
Once this is done, the bank payment method will be available in your Shopify checkout.
5. Repeat for All Required Banks
Each Montonio-supported bank has a separate app. Repeat this installation and activation process for each bank you want to offer in your Shopify checkout.
Refund Handling Between Shopify and Montonio
When a refund is initiated in the Shopify admin panel, the order status is automatically updated to (partially) refunded in the Montonio Partner System ✅
When a refund is initiated in the Montonio Partner System, the order status in Shopify does not update to reflect the refund ❌
⚠️ Important: Shopify does not allow external systems to modify its order statuses. For accurate status tracking and reporting, we recommend initiating all refunds directly in the Shopify admin panel.
📌 Summary
To activate Montonio bank payments in Shopify:
Open the payment app links: List of Montonio Bank Payments Apps on Shopify.
Install each app via Shopify.
Add your API keys from the Montonio Partner System.
Enable test mode (optional).
Click Activate and Save.
Repeat for each supported bank.
If you have additional questions and need our help, feel free to contact our support team via the chat in the bottom right corner.