Connect Slack to Handwrytten
When something happens in Slack, Notis takes the next step in Handwrytten. Describe what you want in plain English, or start from one of the examples below.
When this happens · Trigger
Do this · Action
Ways Notis can move work from Slack to Handwrytten
Turn client praise into a thank-you card
When a Slack channel message records a client's win or kind feedback, prepare a handwritten thank-you card order in Handwrytten for that client.
Save a new contact from a Slack DM
When a direct message shares a new contact's mailing details, add that recipient to the Handwrytten address book for future correspondence.
Queue a card when a message gets the green light
Use a designated Slack reaction on a message about a milestone or thank-you to prompt Notis to prepare a corresponding Handwrytten card order.
Save a reusable note idea as a template
When a Slack channel message contains a reusable handwritten note draft, create a Handwrytten template so the wording is ready for a future card.
Keep recipient addresses current
When an authorized Slack channel update provides a corrected mailing address for an existing recipient, update that recipient in Handwrytten.
Refresh a saved note from a Slack update
When a DM contains an explicit revision to saved card wording, update the corresponding Handwrytten template to keep the approved copy current.
Add a return address when the team shares it
When a Slack channel message supplies a confirmed business return address for card mail, create that address in the Handwrytten user profile.
Set the agreed return address as default
When a Slack channel confirms which saved address should be the default return address, set that address as the Handwrytten default.
Correct a card order detail from a DM
When a direct message clearly corrects a detail on a pending Handwrytten basket item, update that item before checkout.
Supported Triggers and Actions
Notis builds workflows that link Slack to Handwrytten. A trigger fires from one place; an action lands in another.
Slack triggers
Handwrytten actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Add Recipient
Tool to add a recipient address to the user's addressbook in Handwrytten. Use when you need to store a new recipient for sending handwritten cards.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Calculate Order Taxes
Tool to calculate taxes for Handwrytten basket orders. Use without any parameters for basket orders, or optionally provide order details to calculate taxes for a specific order (experimental).
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Check Authentication
Tool to verify API key authentication validity for Handwrytten. Use when you need to test if the API credentials are valid and properly configured.
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Clear Basket
Tool to clear all items from the shopping basket. Use when you need to empty the basket and remove all pending items before starting a new order or canceling the current selection.
Direct Message Received
Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.
Create Template
Tool to create a new template for the current user. Use when you need to save a new message template for sending handwritten cards.
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Create User Address
Tool to create a new user address in Handwrytten. Use when adding a new return address to a user's profile for sending handwritten cards.
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Delete Custom Image
Tool to delete a custom image/logo from Handwrytten. Use when you need to remove a previously uploaded custom image or logo from your account.
Reaction Added Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.
Delete Recipient Address
Tool to delete one or more recipient addresses from user's profile. Use when you need to remove saved recipient addresses. Provide either address_id for single deletion or address_ids for bulk deletion.
Four ways to start an automation.
A trigger is the event that kicks a workflow off. Notis supports four kinds: an event in a connected app, an inbound webhook, a recurring schedule, and soon, your own database.
Integration triggers
Fire when something happens inside a connected app. New Notion page, Stripe charge, Linear issue: any of 1,000+ apps can start a workflow.
Webhook triggers
A unique URL per workflow. Anything that can send an HTTP POST can start an automation, including no-code tools that speak webhooks.
Recurring triggers
Cron-style schedules run a workflow on the clock. Daily standups, hourly syncs, business-hours-only digests: the workhorse of Notis.
Database triggers
Watch a row, query, or threshold in your own database and fire the moment the data changes. Row inserted, value crosses a limit, query starts matching.
Classic automation breaks. AI adapts.
Same triggers and actions, smarter middle. AI handles the fuzziness that breaks traditional Zapier-style workflows the moment a field gets renamed.
Describe it. Notis builds it.
Skip the visual builder. Tell Notis what you want, in plain English. It writes the workflow, you review and deploy.
You · in the Notis Builder
NEW“When a row gets added to the Q4 OKRs Notion database and the status is Blocked, send a Telegram message to the owner with a summary of what's blocking, and ping me if there's no reply within 24 hours.”
Notis built this automation:
Watch every run.
Notis Desktop is Mission Control for your AI automations. See every run, replay, edit, or rewind. Set approval gates so Notis pauses before destructive actions.
- Full run history with inputs, outputs and traces
- Replay any run with edited inputs
- Approval inbox, confirm via chat in one tap
- Audit logs for compliance teams
Automations
Inbox
Migrate background jobs to a durable queue You can cancel it through Stripe
3 daysNotis v3 release update This one’s v3: Notis Manager (desktop app with …
8 daysAdd multi-tenant RBAC User initiates a voice call
13 daysDraft pricing v (tiers, limits, overages) and sanity-check margins
2 weeksVerify analytics events for new features That’s a really interesting automat…
1 monthEverything in the box.
Whatever starts the workflow, the platform underneath is the same: a thinking brain, full visibility, and you in control.
AI in the middle
Every step can include an LLM call: summarise, classify, extract, rewrite.
Full observability
Every run, every step, every input, all replay-able from Mission Control.
Human in the loop
Pause for approval. Notis pings you in chat with one-tap approve.
Self-healing
When an API changes shape, Notis adapts the parser. Less midnight fire-fighting.
More ways to connect Slack and Handwrytten
Connect any two apps with Notis in the middle.
Slack and Handwrytten, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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