私人频道如何设置闲置提醒

Found a solution for this. In case of a private-channel you can use slack inbuilt /remind command in following way:

/remind @channel every weekday at 2pm to start daily standup.

Here you can use either @here (to remind only online people) or @channel (remind everyone in the channel irrespective they are online).

This was a nifty trick I used with my private slack channel. Wont find it on slack documentation but it works.

I was able to set the reminder for the private channel by treating the name as a public channel as such :

Channel name : @private-channel

/remind #private-channel at 9AM every weekday to Start standup

Using #private-channel did not show the channel as an option in the list, but after submitting the reminder, it works

Try the following in the private channel: /remind @here to “send cost report” at 9AM every weekday

You can use Slack workflows to post a scheduled message in a private channel. Start by tapping the lightning icon and search for "Create a workflow". It's straightforward from there