Create Slack reminders from external webhooks
Your workflow extends beyond Google Docs and Slack. You might use custom scripts, internal tools, or other platforms that need to trigger Slack actions. This automation lets any external system send a webhook to Notis, which then creates a Slack reminder—no code integration required.
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
You have custom tools, scripts, or services that need to trigger actions in Slack, but each integration requires custom development. Notis webhooks let you connect anything without building glue code.
- Connect any tool to Slack without custom development
- Extend Notis to work with your entire toolchain
- Trigger reminders from custom scripts and internal tools
- No coding required—just send a webhook
Setup
Build it in a few focused steps.
- 1In your Notis portal, go to Integrations and connect Slack (if not already connected).
- 2Create a new Automation: 'When a webhook is received from [tool/script], create a Slack reminder with the payload data.'
- 3Select 'notis_webhook' as your trigger type; Notis will generate a unique webhook URL.
- 4Copy the webhook URL and configure your external tool to send HTTP POST requests to it with your reminder details.
- 5Test by triggering your external tool and verifying the Slack reminder is created.
Questions about this workflow
How do I format the webhook payload?
Describe the data you're sending to Notis—e.g., 'the reminder text, timing, and which Slack channel'—and Notis will map it. Or send raw JSON and Notis can parse it flexibly.
Can I pass custom data through the webhook?
Yes. Send any JSON data your tool generates, and Notis will include it in the reminder or Slack message.
Is the webhook URL secure?
The webhook URL is unique and requires the correct payload format. For maximum security, you can add API token authentication—ask Notis to enable it.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Google Docs to Slack. A trigger fires from one place; an action lands in another.
Google Docs triggers
Slack actions
New Document Created
Triggers when a new Google Doc is created. This trigger monitors Google Docs and fires when new documents are detected. Uses timestamp filtering to efficiently poll for new documents.
Set snooze duration
Deprecated: turns on do not disturb mode for the current user, or changes its duration. use `set dnd duration` instead.
Document Deleted
Triggers when an existing Google Doc is deleted (moved to trash). This trigger monitors Google Docs and fires when documents are trashed.
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.
Document Placeholder Filled
Triggers when a Google Doc's plain text changes such that a configured placeholder token/pattern is no longer present (i.e., the document has been filled in). This trigger monitors a specific Google Doc and fires when a placeholder pattern that was previously present is no longer found in the document's plain text.
Add an emoji alias
Adds an alias for an existing custom emoji in a slack enterprise grid organization.
Document Search Update
Triggers when a Google Doc matching a user-defined search query is newly created or updated since the last poll. This trigger uses timestamp filtering to efficiently monitor documents.
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.
Document Structure Changed
Triggers when a Google Doc's structure changes (headers/footers added/removed, tables/images count changes). This trigger monitors a specific document for structural changes like: - Headers added or removed - Footers added or removed - Tables added or removed - Images (inline objects) added or removed - Positioned objects added or removed - Footnotes added or removed
Add a star to an item
Stars a channel, file, file comment, or a specific message in slack.
Document Updated
Triggers when an existing Google Doc is updated or modified. This trigger monitors Google Docs and fires when documents are updated.
Add call participants
Registers new participants added to a slack call.
Document Word Count Threshold
Triggers when a Google Doc's word/character count crosses a user-defined threshold. This trigger monitors a specific Google Doc and fires when its word or character count becomes greater than or equal to the configured threshold value.
Add emoji
Adds a custom emoji to a slack workspace given a unique name and an image url; subject to workspace emoji limits.
New Folder Created in Root
Triggers when a new folder is created in the root folder of Google Drive. This trigger monitors Google Drive and fires when new folders are detected in the root directory.
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 Google Docs and Slack. Any combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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