Keeping Tokens and Metadata Up-to-Date | American Express Developers

Keeping Tokens and Meta-data Up-to-Date Through Notifications

Merchants to Amex Flow

All Merchants must use the /notifications API to notify AMEX when a Card is removed from a Customer’s shopping account, and AMEX will update the token status accordingly.

AMEX to Merchants Flow

Using AETS, Merchants can stay up-to-date with the latest token status and Card meta-data updates. Token and meta-data notifications are received automatically through webhooks and/or on-demand through our API:

Delivery Method Description Automatically via webhooks (recommended) It is encouraged to receive notifications via webhooks as AMEX will automatically send a notification of the meta-data or token status updates as they occur. To receive notifications, simply provide the webhook URL on the American Express Developers Portal. On-demand via API Request the latest token meta-data or status using the /metadata or /status endpoints respectively.