Cancel a previously set earmark, releasing the earmarked funds, and preventing the earmark from executing at its scheduled expiration date/time. For more information about earmark operations, refer to the Earmarks launch reference guide.

This endpoint generates the follow events:

• Platform authorization created
• Account balance changed
• Account balance changed (Availables)
• Transaction created
• Earmark created, updated, or canceled with CANCELED Action.

See Data and reporting for more information about events and setting up event notifications.

NOTE: This endpoint requires an account token - an access token encoded with an external account ID. Tokens can expire quickly, which can result in a 401 Unauthorized message.