# Notify Cardholder Authentication Decision
source: https://developer.mastercard.com/mdes-customer-service/documentation/use-cases/notifyauthenticationdecision-use-case/index.md

Issuer has authenticated a cardholder post-tokenization through the issuer's mobile application or banking portal. For the token requestor to receive the authentication result, the issuer will need to send this result to MDES, and MDES will send it to the token requestor.

Issuers can notify the result for post-tokenization authentication to MDES using the `/notifyAuthenticationDecision` endpoint.

MDES will then update the Mastercard systems with the token verification status and the Token Assurance Method (TAM) values and send the result to the token requestor.
Diagram post-tokenization-auth

### Steps: {#steps}

1. Issuer notifies MDES about the cardholder post-tokenization authentication result.
2. MDES updates the cardholder post-tokenization authentication result and Token Assurance Method (TAM).
3. MDES notifies the authentication result to the token requestor.

### Endpoint {#endpoint}


API Reference: `GET /{id}/token/notifyauthenticationdecision`