Notification URL not working (won't be persisted to admin panel)

[Grauen]

When I visit the hypercharge.net admin panel, to view my transactions (sankyudemo), I can't see the notification url, neither will the notification url be called by the backend. I set the notification just like you describe it in the docs:

... // TODO: set your PaymentNotification handler url here ,'notification_url' => 'https://my-website.de/payment/mycallback.php' ...

In the administration panel it says:

mode test
status approved
...
reconciled_at [EMPTY]
notification_url [EMPTY]
return_success_url [EMPTY]
return_failure_url [EMPTY]
finalized_at [EMPTY]

[EMPTY] means there is no value

[Grauen]

It just takes about 1 hour until the first notification is sent to the server. If this behavior is correct, the issue can be closed