Chat & streamingSchedule Slack posts with Postline
Send updates to a Slack channel through an incoming webhook.
What you can do on Slack
| Text limit | 4,000 characters |
|---|---|
| Media | images and video, up to 4 per post |
| Threads and follow-ups | Threads of replies |
| Post analytics | Not available |
| Follower growth | Not available |
| Auto-repost plug | Not available |
| Follow-up plug | Not available |
| How you connect | Paste an API key, token or webhook |
Per-post options
How it works
- Connect Slack. Paste the key or webhook from Slack. The guide shows where to find it.
- Write once. Write the post, tailor the text for Slack if you like, and check the preview.
- Schedule. Pick a time or add it to the queue. Postline publishes it on time.
Something not working? See known issues for Slack.
Slack questions
Can Postline post to Slack automatically?
Yes. Connect your Slack account once, and Postline publishes each post at its scheduled time through Slack's official API. If Slack has a temporary problem, Postline retries and tells you if the post still fails.
What can I post to Slack?
Posts up to 4,000 characters, with images and video (up to 4). Per-post options: Comment from other accounts, Their comment, Comment delay.
Does Postline support Slack threads?
Yes. Add more parts to a post and Postline publishes them as a thread of replies.
Can I see Slack analytics in Postline?
Not yet. Postline publishes to Slack but does not collect Slack analytics.
Is Postline free for Slack?
There is no free plan, but every plan starts with a free trial and includes all 29 networks, including Slack.
Start posting to Slack
Connect your channels and schedule your first post in a few minutes. Every plan starts with a 7-day free trial.
Start free trial