There is no callback event on the Bud connect screen, how do we know if the user cancels?

Article Endpoint: /v1/open-banking/connect/{connection_task_id}

If the flow does not complete successfully it will show as internal_error via the API. You can check the status via /v1/open-banking/connect/{connection_task_id}.

• If the connection flow falls over without any user intervention, the endpoint will show as internal_error 
• If the user cancels the connection flow without consenting then it will show as auth_denied.