Your webhook indeed needs to:* Be accessible from the internet* Be reachable over HTTPS* Correctly respond to a "challenge" request see https://www.adobe.io/apis/experienceplatform/events/docs.html#!adobedocs/adobeio-events/master/intro/webhooks_intro.mdSo you cannot use slack webook url straight fr...

Hello Todd,May be the solution for you would be to configure your webhook for it to receive batched events ? Have you tried that ?could tell us a bit more about your use case ? Which of our events provider/source are you using ?What kind of scale are you aiming for ?Cheers,Francois