OpenCart Smart Checkout plugin

Our OpenCart Smart Checkout plugin allows you to accept payments to your OpenCart store via Viva Wallet.



Before you start

Step 1: Create Viva Wallet account

If you do not already have an account with Viva Wallet please create an account.

Step 2: Find account credentials

Step 3: Create Payment Source

Please refer to this page for instructions on adding a new Payment Source in the Viva Wallet banking app.

You will need to use the OpenCart-specific Success & Failure URLs, as specified at the bottom of the above Payment Source creation page

We would highly recommend you show your company logo on your payment pages in order to increase customer recognition and trust, thus improving conversion. You can insert your company logo while creating the payment source as outlined above.

You can also change or update this logo at any time. To do this, please see our adding your brand logo tutorial for a step-by-step guide.

Step 4: Determine your payment methods

Determine which payment methods you want to offer to your customers.

Some of these payment methods are automatically enabled for you by us (e.g. Apple Pay), other payment methods can only be enabled by yourself (e.g. PayPal), for others you need to get in touch with us to enable them for you after a further review of your business.

It is not possible to activate asynchronous payment methods for the OpenCart Plugin

Setup instructions

Adding the OpenCart Smart Checkout plugin consists of the following steps.

Step 1: Add Viva Wallet plugin to your OpenCart store

  1. Download the OpenCart Smart Checkout plugin (ZIP file) to your device

  2. Unzip the downloaded ZIP file

  3. You should now see a folder called “upload”. Within this folder, there should be two subfolders (“admin” and “catalog”). Connect to your OpenCart root directory (for example, via FTP) and merge these “admin” and “catalog” folders into the “admin” and “catalog” folders within your OpenCart root directory (new files will find their correct place in your system)

  4. Navigate to the extension installer within OpenCart, click on the Upload button, browse to the ZIP file you downloaded in step 1 (not the unzipped folder) and upload it to OpenCart:

    OpenCart Extension Installer

  5. Log in to your OpenCart admin section and navigate to Extensions > Payments:

    OpenCart Admin

  6. Find “Vivawallet” in the list of extensions and click the green button with the plus icon to install the plugin:

    OpenCart Extension

  7. When installed, click the Edit button to show the settings screen:

    OpenCart Edit

  8. Within the settings panel, fill in the following fields:

    OpenCart Settings

    • Merchant Id: Enter the Merchant ID you noted in Step 2: Find Account credentials

    • API Key: Enter the API Key you noted in Step 2: Find Account credentials

    • Source Code: Enter the Source Code of the Source you created in Step 3: Create Payment Source

    • OrderCode URL:

      • Enter if you are using a live Viva Wallet instance
      • Enter if you are using a demo Viva Wallet instance
    • Redirect URL:

      • Enter if you are using a live Viva Wallet instance
      • Enter if you are using a demo Viva Wallet instance
    • Instalments: This is an optional field, only applicable to Greek merchants – you can set the maximum allowed payment installments and their corresponding order values

    • Total: The required minimum order amount for activation of this payment method

  9. When complete, save these settings and the Viva Wallet payment option will be available in your checkout

Get Support

If you have any questions about our solutions, or questions about how to integrate with our solutions, please refer to our Get Support page.