Fraud Protection

Address Verification Service (AVS)

When a customer enters their billing address during a transaction, AVS compares:

• Street address number (e.g., 123 in 123 Main St)

• ZIP/postal code (usually 5 digits in the US)

Post Rules

You can setup rules to either accept or deny certain AVS codes in the transaction response:

Fraud Protection > Configuration > Edit Rule > Post Rules

Common AVS Codes

Code	Meaning
Y	Full match: Street and ZIP code match
A	Partial match: Street matches, ZIP does not
Z	Partial match: ZIP matches, street does not
N	No match: Neither street nor ZIP match
U	AVS not supported by issuing bank
R	System unavailable or timed out
S	Card issuer does not support AVS
G	AVS not supported internationally (used outside U.S.)
B	Street matches, but postal code not verified
C	Street and postal code not verified
D	Street and ZIP match (used in UK & international AVS)
M	Street and ZIP match (international equivalent to Y)