Error code

Card Network 43

CARD NETWORK43
Payment Decline Code· Why a card payment was declined by the issuer or processor, and what to do.

What it means

Stolen Card.

How to fix it

  1. Do not retry.
  2. ask the customer for a different card.

Not affiliated with Card Network. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.