Slack
Send each accepted submission to a Slack channel.
1. Create an incoming webhook
In Slack, create an Incoming Webhook for the channel you want. You'll get a URL like:
https://hooks.slack.com/services/T000/B000/XXXXXXXX
2. Add it to your form
On the form's Webhooks tab, choose Slack as the type and paste the URL.
Each submission arrives as a formatted message with the form name and every field. No signing secret is needed — Slack incoming webhooks authenticate by their unguessable URL, so keep it private.