ShouldEye Trust Intelligence Glossary

Card and Merchant Codes Terms

MCC, POS entry modes, AVS/CVV, 3-D Secure, decline concepts, and merchant acceptance codes — not proprietary network manuals.

Educational information only. ShouldEye does not provide legal, banking, or individualized financial advice. Dispute rights, deadlines, and outcomes depend on your payment method, card network, issuer, processor, jurisdiction, and the facts of your case. Legal Disclaimers

35 published definitions in this topic.

Card and Merchant Codes

Do Not Honor

Do not honor is a common issuer decline type meaning the issuer will not approve the authorization for unspecified or policy reasons.

Read full definition
Card and Merchant Codes

EMV

EMV is the global chip-based payment-card specification managed by EMVCo.

Read full definition
Card and Merchant Codes

MOTO

MOTO means mail-order / telephone-order—card-not-present payments taken remotely by post or phone.

Read full definition