I was searching if slack incoming webhooks can send message to all private groups, but I didn't find any slack documentation on that.
So, can slack incoming webhooks send message to all private groups?
Incoming webooks can post to private groups. When you set up the incoming webhook at https://TEAM.slack.com/services/new/incoming-webhook
, choose the private group you want to send to.
You can send to a different channel (including a different private group) with the "channel"
JSON key.
A single incoming webhook cannot send to multiple destinations.