Give an important launch a tangible customer moment
A postcard can make a meaningful product launch feel more personal for selected customers.
Trigger
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Action
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://...')
Why this helps
Launch follow-up can become scattered across marketing channels and get delayed by competing launch tasks.
- Tie postcard preparation to a clear launch-ready update.
- Make a selected customer group feel included.
- Confirm the recipient list and approved artwork before sending.
Setup
Build it in a few focused steps.
- 1Connect Slack and Docupost to Notis once in the portal.
- 2Create an automation in the portal or ask Notis in plain language.
- 3Describe one instruction for preparing launch postcards only when the launch is ready, requiring confirmation of recipients, addresses, and image details.
- 4Pick Slack Channel Message Received, select a run-report channel, and test using a real launch-ready update.
Questions about this workflow
Can the workflow mail postcards to a full customer list?
Ask Notis to confirm the intended recipients and their addresses before sending, and use the approved postcard images.
What makes a good trigger message?
Use a clear launch-ready update in the relevant Slack channel and describe that cue in the instruction.
When this happens · Trigger
Do this · Action
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.
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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