On Thursday, 10th August at 10 AM (CEST) until 11 AM we will be performing scheduled maintenance on our webhooks service. During this time it will not be possible to create a new webhook configuration. All webhook configurations setup before this time will function as normal but any webhook sent during the maintenance time will not be displayed on your dashboard.
We will post an update here when the maintenance has been completed. If you have any questions in the meantime, please contact us http://bit.ly/TFHelpCentre