Visa 12.2 — Incorrect Transaction Code
Processing Error chargeback.
Code
12.2 VisaCategory
Processing Error
What it means
A credit was processed as a debit, or a debit as a credit.
Evidence that wins
Proof the transaction code was correct.
How to prevent it
Validate transaction types in your integration.
Rules and deadlines differ by region and acquirer — always check the instructions in your PSP dashboard.