Text
Up to 4,000 characters, with the cut line drawn in the composer.
Schedule Slack posts with 1Post
1Post schedules and publishes text to a channel to Slack. Write once, tailor the Slack version with a live preview, and 1Post checks the post against Slack's rules before it goes out at the time you set. The text limit is 4,000 characters, counted by code points.
Everything you can post to Slack
Write once. 1Post prepares each of these for Slack, shows a preview and checks it before it is sent.
Slack limits at a glance
| Rule | Value |
|---|---|
| Text limit | 4,000 characters, counted by code points |
| Media accepted | Text only |
| Threads | No |
| First comment | No |
| Posts per day, per connected account (1Post) | 100 |
Every rule, with the network's own page where we read one: Slack specs and limits.
Connect Slack in a few steps
Start the connection
In Slack, create an incoming webhook for the channel.
Copy the webhook URL.
Approve access
Open Accounts in 1Post and choose Connect, then Slack, and paste the URL.
Pick it in the composer
Choose the channel in the composer.
PricingRecommended
Surely there is a plan for you
Every plan posts to every network, with unlimited members and a 7-day trial for $1.
Starter
$29
per month
For one person running their own channels
Start trial- 20 connected accounts
- 200 scheduled posts in the queue
- 500 posts a month to Instagram, Facebook Page, Threads and more
Creator
$97
per month
For creators and small teams posting every day
Start trial- 40 connected accounts
- 1,000 scheduled posts in the queue
- 2,000 posts a month to Instagram, Facebook Page, Threads and more
Agency
$499
per month
For agencies running many client brands
Start trial- 100 connected accounts
- 3,000 scheduled posts in the queue
- 10,000 posts a month to Instagram, Facebook Page, Threads and more
Frequently asked questions
How many characters can I post on Slack?
4,000, counted by code points. The 1Post composer uses the same count and marks where the text would be cut. Character counter.
Can I schedule Slack posts with 1Post?
Yes. Write the post once, tailor the Slack version, then pick a time or a free queue slot. 1Post previews the post and checks it against Slack's rules before it is sent.
How many Slack posts can 1Post publish in a day?
Up to 100 a day for each connected Slack channel.
Get this week’s posts scheduled
Connect your accounts, write once and let 1Post publish on time while you get on with the rest of your day.