Diagnose and remediate interchange downgrade causes by implementing Level 2 and Level 3 data submission

Steps

1. Pull your interchange qualification report from your processor or acquirer; identify transactions that downgraded from target categories (e.g., Visa Business Preferred, Mastercard Corporate Enhanced) to base categories (EIRF or Standard)
2. Identify the most common downgrade triggers: missing Level 2 data (tax amount, customer code/PO number) for corporate/purchasing cards; missing Level 3 data (line-item detail, commodity codes, unit prices) for large-ticket B2B transactions; AVS non-match; settlement more than 1 business day after authorization
3. Implement Level 2 data submission by passing tax amount and customer reference fields in your authorization and capture requests; exact field names vary by processor API — consult your processor's Level 2 integration guide
4. Implement Level 3 data by including line-item detail in the capture/settlement request; this requires an itemized order object with quantity, unit price, commodity code, and product description per line
5. Re-run a sample of transactions with Level 2/3 data enabled and compare interchange qualification rates before and after to quantify savings