Find answers to frequently asked questions.

How can I customized the look and feel of JavaScript UI components?

As of now, it’s only possible to customize the look of the Credit Card UI components by selecting the light weight form. By implementing the form that way, you’re able to change the styling, layout and overall feel of the UI components.

How can I include the Android SDK in Android Studio?

Adding the Unzer Android SDK to Android Studio is easy, simply follow the guide in the Android Setup section of the Mobile integration Add the SDK to your project.

Where can I find my senderId, username, password and channel?

senderId, username and password were part of the old API and are no longer necessary. If you want to see how the new API works and the differences between the old and the new platform, check out the migration guide.

Where are the PayPal, SOFORT, GiroPay, Przelewy24 and Unzer Bank Transfer integration guides?

The integration guides for PayPal, SOFORT, GiroPay, Przelewy24 and Unzer Bank Transfer can be found in the Redirect Payments guide.

Where can I find the source code to the mobile SDK's?

The mobile SDK’s can be found on GitHub:

If you’re trying to embed one of the mobile SDK’s in your application, you have to set the correct dependencies as described in the iOS Setup and Android Setup sections.

Where can I find the source code to the server-side SDK's?

The server SDKs can be found on GitHub:

For proper usage check the respective guides for the Java SDK, the NodeJS SDK and the PHP SDK.

Where can I find transaction details?

There are 2 ways to check a transaction status and the associated details:

  • Execute a GET request on the payment ID of the transaction in question.
  • Check the transactions section on the Unzer Insights platform and search for the transaction ID, unique ID or short ID.
How do I know if and when a pending transaction has been completed?

You can check the status of a transaction by executing a GET request on the payment ID of the transaction or look it up on the Unzer Insights platform.

Additionally you can be notified when a pending transaction is completed by implementing webhooks.

Where can I get my public and private key?

To acquire a public and a private key, you need to have a contract with Unzer first. After that you can simply get in contact with the Unzer support.

What is 3DS (3D Secure)?

3D Secure is an additional security layer for online credit card transactions. Check out the 3D Secure section for more information and and in depth explanation.