Route External Events to Slack Reminders via Webhook
Connect your entire tech stack to Slack. Use Notis webhooks to trigger reminders from external systems, keeping all tasks in one place.
Trigger
Webhook received
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Action
Create a reminder
Creates a slack reminder with specified text and time; time accepts unix timestamps, seconds from now, or natural language (e.g., 'in 15 minutes', 'every thursday at 2pm').
Why this helps
Notifications scatter across tools (Zapier, IFTTT, custom integrations), creating cognitive overload. Centralizing reminders in Slack reduces context-switching.
- Consolidate reminders from multiple external systems into Slack
- Reduce notification fragmentation across tools
- Trigger reminders directly from any custom backend or API
- Build flexible automations without rebuilding your entire stack
Setup
Build it in a few focused steps.
- 1Connect HubSpot and Slack to Notis.
- 2Create an automation called 'External Event Reminder' with this prompt: 'When a webhook receives an event, create a Slack reminder with the event data. Extract relevant details and format them as a clear action item.'
- 3Select 'Webhook' as your trigger and pick your personal DM as your reminder channel.
- 4Copy the webhook URL and configure your external system (custom app, third-party API, Zapier, IFTTT) to POST events to this URL. Test with a sample event.
Questions about this workflow
What data can I send through the webhook?
Any JSON data your system generates. Notis will parse it and extract relevant reminder text, dates, and priority information.
Can I authenticate the webhook to prevent spam?
Yes. Notis supports token-based authentication or API keys to ensure only authorized systems can trigger reminders.
Can reminders be scheduled for future times?
Yes. Include a timestamp in your webhook payload and Notis will schedule the reminder for the specified time.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Hubspot to Slack. A trigger fires from one place; an action lands in another.
Hubspot triggers
Slack actions
Contact Created Trigger
Contact Created Trigger
Set snooze duration
Deprecated: turns on do not disturb mode for the current user, or changes its duration. use `set dnd duration` instead.
Deal Stage UpdatedTrigger
Deal Stage UpdatedTrigger
Add a custom emoji to a Slack team
Deprecated: adds a custom emoji to a slack workspace given a unique name and an image url. use `add emoji` instead.
Add an emoji alias
Adds an alias for an existing custom emoji in a slack enterprise grid organization.
Add a remote file
Adds a reference to an external file (e.g., google drive, dropbox) to slack for discovery and sharing, requiring a unique `external id` and an `external url` accessible by slack.
Add a star to an item
Stars a channel, file, file comment, or a specific message in slack.
Add call participants
Registers new participants added to a slack call.
Add emoji
Adds a custom emoji to a slack workspace given a unique name and an image url; subject to workspace emoji limits.
Add reaction to message
Adds a specified emoji reaction to an existing message in a slack channel, identified by its timestamp; does not remove or retrieve reactions.
Connect any two apps with Notis in the middle.
Not just Hubspot and Slack. Any combination from 985+ integrations.
When this happens · Trigger
Do this · Action
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