Response Code

55 — Incorrect PIN

ISO 8583 Response Code 55

Meaning: Incorrect PIN

Action / Description

PIN entered does not match. Customer should re-enter PIN.

Decode and Verify ISO 8583 & EMV Transactions

Use IsoFluent's suite of 100% client-side tools to parse full message logs and decode complex TVR/TSI values instantly.

📡 ISO 8583 Studio 💳 EMV Inspector

This entry is part of IsoFluent's comprehensive ISO 8583 and EMV Reference Database.

\n