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Notis

Send a community welcome letter

Make community beginnings feel intentional from day one.

Trigger

New Channel Created Trigger

Triggered when a new channel is created in Slack.

Action

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://...')

Why this helps

Community launches move quickly and personal welcomes are easy to miss.

  • Creates a consistent community welcome
  • Reduces launch-day task switching
  • Adds a personal brand moment

Setup

Build it in a few focused steps.

  • 1Connect Slackbot and Docupost once in Notis.
  • 2Create an automation named New community channel letter.
  • 3Tell Notis to recognize community channels, confirm the organizer and mailing details, and send the approved PDF letter.
  • 4Pick New Channel Created as the trigger.
  • 5Choose a report destination and test with one community channel.

Questions about this workflow

How do I define a community channel?

Describe naming patterns or channel context that identify community channels.

Can the sender differ by program?

Yes. Include approved sender rules in the automation prompt.

When this happens · Trigger

Do this · Action

Supported Triggers and Actions

Notis builds workflows that link Slackbot to Docupost. A trigger fires from one place; an action lands in another.

Slackbot triggers

Docupost actions

Recurring trigger

Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.

TriggerScheduled

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://...')

ActionInstant

Webhook trigger

Notis starts this workflow when an external tool or custom backend sends an HTTP request.

TriggerInstant

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://...')

ActionInstant

New Channel Created Trigger

Triggered when a new channel is created in Slack.

TriggerInstant

Channel Message Received

Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.

TriggerInstant

Direct Message Received

Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.

TriggerInstant

Message Reaction Added

Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.

TriggerInstant

Message Reaction Removed

Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.

TriggerInstant

Reaction Added Trigger

DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.

TriggerInstant

Connect any two apps with Notis in the middle.

Slackbot and Docupost, or any other combination from 1,000+ integrations.

When this happens · Trigger

Do this · Action

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No card. Works with personal or business Docupost.