Create a Preauth Transaction

How to create and complete a preauth transaction within Tap on Phone.


Preath transactions allow payment to be pre-authorised and collected using Tap on Phone.

If you wish to activate preAuth functionality in your terminals, please contact your Viva Wallet sales representative. Alternatively, you can contact us directly via our live chat facility, by simply clicking on the live chat icon in the bottom right-hand corner of this page.


  1. Choose Preauth from the dropdown menu on the Charge tab with the keypad. Enter the amount you would like to pre-authorise and press “Preauthorise”. Preauth1

  2. Press the card or payment device to the phone’s NFC scanner. Preauth2

  3. Choose to print or share a receipt once payment is complete or return to main screen. Preauth3

Get Support

If you would like to integrate with Viva Wallet, or if you have any queries about our products and solutions, please see our Contact & Support page to see how we can help!