What has happened to a customer, invoice, payment request or schedule.
Adfin API (1.0.0)
Adfin uses OAuth 2.0 access tokens to authenticate all API requests.
There are two contexts in which tokens are issued:
Biller Access Tokens — Generated via the Authorization Code flow when a biller connects their Adfin account. These tokens grant access to that biller's data (invoices, payment requests, customers, etc.).
Platform Access Tokens — Generated via the Client Credentials flow when a platform authenticates as itself rather than as one of its billers. A platform uses one to manage its own webhook subscriptions under
/api/apps/{clientId}/webhooks.