Shopify module installation
These installation instructions apply to the new Paytrail (formerly Checkout).
To install the module in your online store:
1. Log in to your Shopify store.
2. Click Settings at the bottom left and then click Payment providers.
3. From the Payment provider page, click Alternative payments. Select the Paytrail payment service from the drop-down menu and enter your merchant ID and Secret key on the form.
Note: "Paytrail" payment method means the old Paytrail implementation. To use the new Paytrail, select "Paytrail payment service".
4. Click "Save", after which the payment methods will be available in your store.
Now Paytrail is available in your Shopify store.