Connecting Slack to your app

Connect Slack to send messages, respond to events, and trigger workflows from your app. Choose Slack User when messages should appear from the person who connected Slack, or Slack Bot when they should appear from a bot you name and style.

You need a Builder plan or higher to use connectors in your app.

What you can do

Post to channels

Send updates or announcements to a channel when something happens in your app.

Notify teammates

Send an alert the moment a ticket, deadline, or threshold is hit.

Automate updates

Send recurring digests, reminders, and summaries from your app on a schedule.

Example prompts for Slack User

Post a message to the #support channel when a new ticket is created.

Send a daily summary of completed tasks to my team's Slack channel.

Notify me in Slack when a sale is made in my app.

Example prompts for Slack Bot

Post a message to #deployments when a new release is published.

Send a reminder to a channel when a task deadline is approaching.

Reply to app mentions in Slack with a summary from my app.

At a glance

Type identifiers

slack (Slack User), slackbot (Slack Bot)

Auth model

OAuth

Connector types

For app builders, For app users

Connection config

None

Permissions guide

Slack scopes and permissions

Slack User

Messages appear from the person who connected Slack. Best when a workflow needs to act as a specific person.

Slack Bot

Messages appear from a bot you name and style. Best for shared notifications and automated updates.

You can use one Slack app for both Slack User and Slack Bot. Register the Slack app in Base44 twice, once for each connector, using the same Client ID and Client Secret. Make sure the Slack app includes all scopes required by both connectors. If a required scope is missing, the affected connector cannot be authorized.

Connect Slack User

For app builders
For app users

Connect one Slack account for your app’s Slack workflows. Base44 handles the OAuth app, so there is nothing to register. Start from the AI chat, or from Integrations → Browse in your app’s dashboard.To connect Slack User:

Go to your app editor.
Describe what you want to do with Slack in the AI chat, for example: Post a message to the #support channel when a new ticket is created.
Review what the AI chat asks for under We need your permission to access.
Click Connect to Slack User.
In the Slack window, choose your workspace, review the permissions, and click Allow.

Connect Slack Bot

A Slack Bot connection is workspace-level. The bot is installed to a Slack workspace, not to an individual person’s account.

For app builders
For app users

Connect one Slack bot for your app’s Slack workflows. Base44 handles the OAuth app, so there is nothing to register. Start from the AI chat, or from Integrations → Browse in your app’s dashboard.To connect Slack Bot:

Go to your app editor.
Describe what you want to do with Slack in the AI chat, for example: Post a message to #deployments when a new release is published.
Review what the AI chat asks for under We need your permission to access.
Click Connect to Slack Bot.
In the Slack window, choose your workspace, review the permissions, and click Allow.

Customize the Slack Bot identity

Give the bot a name and an icon when you set it up. Slack Bot can post to public channels without an invite. For private channels, invite the bot to the channel first.

Send messages as "Deploy Bot" with a rocket icon.

Slack scopes and permissions

Each connector uses its own scopes, and the two sets are not interchangeable. Selecting a Slack User scope for Slack Bot, or the reverse, causes the connection to fail.

Slack User scopes

Scope	What it allows	How it is provided
`users:read`	View people in the workspace	Always included
`users:read.email`	View email addresses	Always included
`chat:write`	Send messages as the connected person	Suggested scopes
`channels:read`	View public channel information	Included in Additional scopes

channels:read is a required scope for this connector to work, and is included in Additional scopes. If you remove it, the connector will not work.

Slack Bot scopes

Scope	What it allows	How it is provided
`chat:write.customize`	Set the bot’s name and icon per message	Always included
`chat:write.public`	Post to public channels without joining	Always included
`chat:write`	Send messages as the bot	Suggested scopes

Scope lists may change. Always review the permissions shown during the connection flow.

Use Slack in a backend function

Once Slack is connected, your backend functions can retrieve an access token and call the Slack API directly. Base44 handles the OAuth flow and token storage.

// Slack User: posts as the connected person
const userConn = await base44.asServiceRole.connectors.getConnection("slack");

// Slack Bot: posts as the bot
const botConn = await base44.asServiceRole.connectors.getConnection("slackbot");

Use getConnection() for a shared connection, or getCurrentAppUserConnection() so each request uses the signed-in person’s token.

Shared connectors

Configure, deploy, and call a shared connection from a backend function.

App user connectors

Retrieve the token for the signed-in person and call the API on their behalf.

Troubleshooting

The connection fails with an invalid scope error

Slack User and Slack Bot use different scope sets and cannot be mixed. Check that you selected only the scopes listed for the connector you are setting up, and that your Slack app requests those same scopes.

The connection fails with a redirect URI error

The redirect URI in your Slack app must exactly match one shown in View redirect URIs for your apps for that app. Each app has its own set, so add every URI shown.

The bot cannot post to a private channel

Slack Bot posts to public channels without an invite. For a private channel, invite the bot to the channel first.

Some people cannot connect their Slack User account

If your Slack app is not distributed, only people in your own Slack workspace can connect. Enable public distribution in your Slack app settings.

FAQs

Can I use both connectors in the same app?

Yes. They are separate connectors, so add each one you need.

Can I customize Slack messages?

Yes. Describe the format, content, and timing you want in the AI chat. You can also open the generated backend function in Dashboard → Code → Functions to fine-tune the message payload, for example using blocks for more complex layouts.

How do I switch or disconnect a Slack account?

In your app’s Integrations tab, open My integrations, find Slack User or Slack Bot, and click the More actions icon to switch account, reconnect, or disconnect. Learn more about managing connectors.

Getting started

Building your app

Designing your app

Managing app data

Adding logic to your app

Selling on your app

Using on mobile

Domains

Securing your app

Measuring your app

Growing your app's reach

Superagents

Integrations

What you can do

Post to channels

Notify teammates

Automate updates

At a glance

Slack User

Slack Bot

Connect Slack User

Connect Slack Bot

Customize the Slack Bot identity

Slack scopes and permissions

Slack User scopes

Slack Bot scopes

Use Slack in a backend function

Shared connectors

App user connectors

Troubleshooting

FAQs

​What you can do

Post to channels

Notify teammates

Automate updates

​At a glance

Slack User

Slack Bot

​Connect Slack User

​Connect Slack Bot

​Customize the Slack Bot identity

​Slack scopes and permissions

​Slack User scopes

​Slack Bot scopes

​Use Slack in a backend function

Shared connectors

App user connectors

​Troubleshooting

​FAQs

What you can do

At a glance

Connect Slack User

Connect Slack Bot

Customize the Slack Bot identity

Slack scopes and permissions

Slack User scopes

Slack Bot scopes

Use Slack in a backend function

Troubleshooting

FAQs