Connect Slack to Docupost
When something happens in Slack, Notis takes the next step in Docupost. 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 Docupost
Send a client thank-you letter
Turn a clearly agreed client appreciation moment in Slack into a letter, with Notis checking the recipient and document details before mailing.
Celebrate customer milestones with a postcard
Use a designated Slack reaction on a milestone message to prompt a Docupost postcard, after Notis confirms the customer and design details.
Prepare a welcome letter for a new client
Turn a Slack announcement about a new client into a confirmed welcome-letter task, with Notis checking the required mailing details.
Thank event attendees with a postcard
Use a Slack recap naming an attendee or partner to prompt a Docupost postcard, with Notis checking the address and approved design.
Mail a signed-agreement confirmation
When Slack confirms an agreement is signed, use Notis to prepare a formal confirmation letter after recipient and document details are verified.
Thank referral partners with a postcard
When a referral partner sends a Slack DM about a referral, let Notis prepare a personal postcard after confirming who should receive it.
Mail a proposal follow-up letter
Use a designated reaction on an approved-proposal message to cue a Docupost letter, with Notis verifying the document and recipient.
Send customers a product launch postcard
When Slack marks a launch as ready, use Notis to prepare a customer postcard after confirming the audience, address, and approved artwork.
Send a vendor onboarding confirmation
Use a Slack vendor-onboarding update to prepare a Docupost confirmation letter, with Notis checking the intended contact and final document.
Supported Triggers and Actions
Notis builds workflows that link Slack to Docupost. A trigger fires from one place; an action lands in another.
Slack triggers
Docupost actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Send Letter
Tool to send a letter via u.s. mail with specified recipient, sender, and pdf. use after confirming recipient and document details. example: send letter(to name='john doe', to address='123 main st, ...', file url='https://...')
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Send Postcard
Tool to send a postcard via u.s. mail with specified recipient, sender, and front/back images. use after confirming recipient addresses and design urls. example: send postcard(to name='john doe', ..., front image='https://...', back image='https://...')
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Direct Message Received
Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Reaction Added Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.
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
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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 Docupost
Connect any two apps with Notis in the middle.
Slack and Docupost, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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