Glossary

Key terms used in D1 eCom Enablement documentation.

Use these terms consistently across your integration.

Term	Definition
3DS	EMV 3-D Secure authentication protocol as specified by EMVCo.
Card-on-file (COF)	This is when a business, with the end user's consent, stores the payment card data. The end user can then reuse the details for future payments and faster checkouts.
CNP	Card Not Present. Name for transaction where the card is not entered in a terminal, typically e-commerce.
Detokenization	The process of mapping the token back to its original PAN value.
DPAN	Digitized Primary Account Number
FPAN	Funding Primary Account Number
LCM	Life Cycle Management
MDES	Mastercard digital enablement service
PAN	Primary Account Number
PSP	Payment Service Provider
Token requestor	An e-commerce merchant or wallet provider (a wallet application installed in a device) as per EMV definition.
TSP	Token Service Provider
VTS	Visa Token Service. Equivalent of MDES for Mastercard.