Make customer feedback feel heard
When a customer takes time to share useful feedback, a postcard can make your thanks more memorable.
Trigger
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
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
Teams appreciate feedback in the moment but often forget to send a personal response.
- Give valuable feedback a deliberate follow-up.
- Use a reaction as a lightweight signal for appreciation.
- Confirm the address and approved postcard design.
Setup
Build it in a few focused steps.
- 1Connect Slack and Docupost to Notis once through the portal.
- 2Create an automation in the portal or ask Notis for one conversationally.
- 3Describe in one instruction which feedback reaction should prompt a thank-you postcard and require recipient and image confirmation.
- 4Choose Message Reaction Added with the desired channel or emoji filter, pick a report channel, and test on one real feedback message.
Questions about this workflow
Can different feedback messages be handled differently?
Describe the kind of feedback worth a postcard in the instruction, and use a specific reaction to make the cue clear.
What details need to be ready?
Confirm the recipient, mailing address, and front and back images before the postcard is sent.
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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No card. Works with personal or business Docupost.