Invite Slack users from external webhooks
Your CRM onboards a new customer, or your project management tool flags a new contributor—an external webhook signals Notis, and the right people are automatically invited to the project Slack channel.
Trigger
Webhook received
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Action
Invite users to a Slack channel
Invites users to an existing Slack channel.
Why this helps
Coordinating access across multiple tools requires manual effort and creates security gaps when invitations slip through the cracks.
- Automate access provisioning across your tech stack
- Keep Slack membership synchronized with external systems
- Reduce security risks from stale or missing access
- Eliminate manual invitation coordination
Setup
Build it in a few focused steps.
- 1Connect Slack to Notis
- 2Create a new automation with the prompt: 'When an external system sends a webhook about a new team member, invite them to the project Slack channel'
- 3Choose the trigger: Notis Webhook
- 4Notis provides a webhook URL to share with your external system
- 5Test by triggering the webhook from your external tool and verify the Slack invitation
Questions about this workflow
Can I map data from the webhook to the Slack invitation?
Yes. Your prompt tells Notis what to extract: 'use their email to find and invite them' or 'invite the person associated with this project'.
What if the user doesn't exist in Slack yet?
Notis can handle this in your prompt: 'send an email invitation' or 'notify the admin instead'.
Can I invite people to multiple channels from one webhook?
Absolutely. Your prompt can specify channel logic: 'add them to #general and their project channel'.
When this happens · Trigger
Triggers when new messages appear in a specified channel.
Do this · Action
Add an alias for an existing custom emoji.
Supported Triggers and Actions
Notis builds workflows that link Discord to Slack. A trigger fires from one place; an action lands in another.
Discord triggers
Slack actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Add an emoji alias
Add an alias for an existing custom emoji.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
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Add a reference to an external file for discovery and sharing.
New Discord Message Trigger
Triggers when new messages appear in a specified channel.
Add Enterprise user to workspace
Adds an Enterprise user to a workspace, with optional guest restrictions.
Add a star to an item
Adds a star to a Slack item; it cannot be viewed or interacted with by end users.
Add call participants
Register participants who join a call.
Add emoji
Add a custom emoji to a workspace.
Add reaction to message
Adds an emoji reaction to a Slack message.
Search for channels in Enterprise organization
Searches for public or private channels in an Enterprise organization.
Connect any two apps with Notis in the middle.
Discord and Slack, or any other combination from 1,500+ integrations.
When this happens · Trigger
Do this · Action
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