Webhook paid feature?

Hi all,
Been looking for the answer to this for a while, I would have thought it was a simple one!
Durring my 2 week trial I had set up an Integromat scenario involving a webhook from Adalo. It all worked fine. Trial has expired and webhook is no longer working.
Could someone please confirm that the integration of webhooks and (anything with Integromat) is a feature only accessible once you’ve paid? And which paid tier this would count under if so?
Thanks!

professional plan