SlackSlack scheduler: schedule announcements into workspace channels
Keep your announcements channel alive with updates written ahead. Let our app into your workspace, pick the channel, add an image, and the announcement goes out at the time you set, from the same calendar as your social posts.
- Workspace channelschosen per announcement
- Internal or communityfor the team and for members alike
- 37 platforms and appsincluding Slack, in one calendar
It speaks to your community, not to strangers
Members of a Slack workspace already stepped in: customers, teammates or members of your community. Here you are not building reach, you are keeping the people who are in in the loop, and that matters at least as much.
The announcements channel finally stays alive
Most internal news channels fail because it is nobody's job to write them. If the weekly announcement is part of your content calendar, it gets made the same way as any public post.
You write it once, Slack gets it too
A published article, a product update, an upcoming event is news outward and inward. In the editor an internal-toned variant comes together from the same content, with a single schedule.
The follow-up goes into the thread, not the channel
Slack's strength is that the conversation unfolds in a thread under the announcement. When you schedule through the API, extra entries after the announcement go into that thread: the channel stays clean, and the details stay in one place.
Plan, schedule and measure your Slack content from one place
Announcements into your team's or community's channel, written ahead and scheduled.
The #announcements channel that does not dry up
Announcements channels typically die because something else is always more urgent. If you write the weekly news ahead and schedule it, the channel keeps living on its own, and members don't have to look somewhere else for what happened.
- A weekly announcement scheduled ahead
- A target channel chosen per announcement
- Calendar view together with the rest of your content
Drag a post to another day to move it.
What you say outward, the team gets too
A product update or a published blog post is news on your public surfaces and on Slack too. In the editor an internal-toned variant comes together from the same content in a few moves, with no separate copywriting.
- Per-account copy variants in the editor
- One schedule, several social accounts
- An image from the media library next to the announcement
Goes out on 4 channels. You can keep editing until then.
Good timing here is a question of courtesy
A Slack message lands during working hours: an announcement sent Friday evening or over a holiday nobody reads, and it pings everyone. In the calendar you set to the minute when it should go out.
- Times fitted to working hours
- Scheduling to the minute
- Weekly days planned ahead
Drag a post to another day to move it.
Post everywhere at once
Post everywhere in 30 seconds instead of 30 minutes. Manage all your social accounts from one place: connect your profiles and publish the same content to every platform at once, in a few clicks, without the extra hassle.
Post everywhere at once- Facebook
- Slack
- Instagram
- LinkedIn
TikTok
Our autumn menu starts Friday: cardamom buns and a new house filter. Come by and try it first!
Start with Slack in three steps
Connect your workspace
A few clicks: in Slack's own approval window you let our app in.
- 02
Pick the channel
An announcements channel, a community channel or a team channel, as you like.
- 03
Write it, and schedule it
The announcement arrives during working hours, at the minute you pick.
Take the Slack load off your shoulders
Write the next few weeks in one go, drag them onto the calendar, and Postemi publishes at the minute you set. You only have to deal with the content.
Frequently askedquestions
Can I schedule Slack announcements with Postemi?
How do I connect my Slack workspace?
Which channels can I write to?
Can I schedule an image to Slack too?
Slack is for internal communication, why a scheduler here?
Can Postemi write into the thread too?
What is the character limit for Slack in Postemi?
How many announcements can I schedule at once?
Does Postemi write copy for my Slack announcements with AI?
Does Postemi have a Slack API?
Is there a free trial for Slack scheduling?
More platforms
AI agents that post through Postemi
The same Postemi account works with every agent below. Each page shows the exact setup.
Grow your audience,not your workload
Postemi brings your social accounts together in one calendar, so you can spend more time on your leads and your business. Don't let managing your accounts take up ten hours a week.