Payment Form Processing Data
From KB
The payment form processing data is a necessary component of the payment form to validate the authenticity of a transactions. The secret value obtained here should be added to your payment form and should be kept confidential.
To retrieve your secret key:
1. Go to Virtual Terminal > Payment Form Processing Data
2. Enter your Transaction Manager password to ensure authorized access.
3. All devices will be listed in the grid. Click 'Generate Secret' next to the device that will be processing your payment form. The Secret will appear in the far right column.
4. Enter the secret key in your payment form.