Bubble.io Slack Integration: Notifications, Commands and Workflows

Updated October 2026 · By Athar Ahmad, certified Bubble.io developer and founder of SA Solutions

Many teams live in Slack. Sending your app’s important events there, such as a new order, a high-value lead or a failed payment, means people see them instantly without checking another dashboard. For B2B products, letting customers connect their own Slack workspace is often a valued feature. This guide covers both, from a simple alert to a full two-way integration.

Three levels of Slack integration

1. Internal alerts with an incoming webhook

1. Create an incoming webhook in Slack for the target channel
2. Add it as a call in the API Connector, keeping the URL private
3. Call it from workflows, for example when a new paid subscription arrives
4. Format messages clearly, with a link back to the record in your app

2. Letting customers connect their own Slack

1. Create a Slack app and configure OAuth with the permissions you need
2. Add a “Connect Slack” button that starts the authorisation flow
3. Store each customer’s token securely on their account, protected by privacy rules
4. Let them choose which events go to which channel
5. Provide a disconnect option that removes the stored token

3. Two-way actions

Slack can send button clicks and slash commands to your app. Expose a backend workflow as an API endpoint, register it in your Slack app, verify each request comes from Slack, perform the action, such as approving a request, and reply with a confirmation.

Making Slack alerts useful, not noisy

• Send only events someone will act on
• Batch low-priority updates into a daily summary
• Include the key details and a link, so people rarely need to open the app
• Let users choose events and channels in settings; see notifications

Prefer an automation tool for simple internal alerts? See Bubble.io vs Zapier.

Frequently asked questions

How do I send messages from Bubble.io to Slack?

The simplest way is an incoming webhook: create one in Slack for a channel, then call its URL from a Bubble.io workflow using the API Connector, with the message as a parameter.

Can my customers connect their own Slack workspace?

Yes. Build a Slack app with OAuth, let each customer authorise it from your app, store their access token securely, and send messages to the channels they choose.

Can Slack trigger actions in my Bubble.io app?

Yes. Slack can send interactive button clicks and slash commands to a Bubble.io backend workflow exposed as an API endpoint, which then performs the action and responds.

How do I keep a Slack integration secure?

Keep tokens and webhook URLs private in the API Connector, verify that incoming requests really come from Slack before acting on them, and request only the permissions you need.

Is Zapier a good alternative to a direct Slack integration?

For simple internal alerts, an automation tool can be quicker to set up. For a product feature your customers use, a direct integration is more reliable and gives you full control.