Fiserv Payment Demo

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Transaction Origin
PHONE: Order received over phone, you enter payment details, Card Code required
ECI: Standard eCommerce, customer enters details, 3D Secure required
MAIL: Manual entry from written form, Card Code not allowed
Transaction Details
Order ID: e493a714-5f2c-41b3-a37d-fdb6be52d267
Amount: £20.00
Currency: 826
Transaction Type: sale
Checkout Option: combinedpage
Store: 2220542147
Language: en_GB
Timezone: Europe/London
Timestamp: 2025:12:24-12:41:26
Email: john.doe@example.com
Hash Data String (What Gets Hashed)

String being hashed:

20.00|combinedpage|826|HMACSHA256|e493a714-5f2c-41b3-a37d-fdb6be52d267|https://fiservtest.leftoverbits.co.uk/PaymentResponse/Failed|https://fiservtest.leftoverbits.co.uk/PaymentResponse/Success|2220542147|Europe/London|https://fiservtest.leftoverbits.co.uk/PaymentResponse/Notify|PHONE|2025:12:24-12:41:26|sale

This string is hashed with your shared secret to create the hashExtended value.

Form Data Being Sent to Fiserv
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