Slack scheduler
Schedule Slack messages with your team.
Announcements and updates in the Slack channels your team or community already reads. Plan them on one calendar with your other channels, and get them approved before they go out.
- Text
- Up to 40,000 characters
- Images
- Up to 10 per post
- Video
- Videos uploaded as files, up to 1 GB each
- Options
- Notify no one, @here or @channelShow or hide link previews on text messagesAlt text on images
How it works on Slack
- 1
Connect Slack
Add the Postzora app to your Slack workspace, then pick the channels to post to. For a private channel, invite the app to it first.
- 2
Write and adapt
Write once, then adjust the Slack version. The editor counts against the 40,000-character limit as you type.
- 3
Approve and schedule
Send it for approval or schedule it straight away. It goes out at the time you pick, or the next free posting time for this Slack channel.
- A live Slack preview next to the editor
- Posting times for each Slack channel
- Approvals, roles and notifications
- Credentials encrypted at rest
- Plan and schedule by asking Claude or ChatGPT
Slack questions
Still deciding? The free trial is the quickest way to find out. It takes about a minute to set up.
Can you schedule messages on Slack?
Yes, Slack can schedule a message from its composer, one channel at a time. Postzora schedules Slack messages alongside your other networks, on one calendar, with approvals for your team.
How do I connect Slack to Postzora?
Add the Postzora app to your Slack workspace, then pick the channels to post to. For a private channel, invite the app to it first.
Can I schedule Slack posts with other networks at once?
Yes. Pick Slack along with any other channels, write one post and adjust each network’s version before it goes out.
Can my team review Slack posts before they publish?
Yes. Turn on approvals for the workspace and posts from editors wait for an admin or owner to approve them.
What happens if a Slack post fails?
Temporary errors retry automatically. If the post is rejected, it is marked as failed with the reason and you get a notification. If the connection expires, the channel is flagged so you can reconnect it.
Free Slack tools
Post to Slack and these together
Start scheduling Slack messages today.
Try every feature free for 7 days and connect your first channel in about a minute. Cancel any time.