Integrate Payments on your Website with Bigcommerce
Setup your merchant account with Integrate Payments First.
Big Commerce Setup
Settings: Payments: More Payment Methods: Check 'NMI': click Save.
A new tab will appear next to 'General Settings' labeled 'NMI'.
Enter the Display Name (ex: Credit Card)
Enter the Gateway Username
Enter the Gateway Password
Select the Transaction Type
Authorize & Capture OR
Select Card Requirement Preference -- Choose Yes
Select Duplicate Window -- Set to 0.5 hours or higher. Setting this to 0.00 will allow Duplicate Transactions to get through.
Every merchant account will have to stay compliant by completing a SAQ Self Assessment Questionnaire every year or they will be charged a monthly PCI non compliance fee.