Reduce address mistakes before sending cards
A corrected mailing address in Slack can update the matching Handwrytten recipient record, keeping future handwritten mail on track.
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
Update Recipient
Tool to update a recipient address in the user's addressbook in Handwrytten. Use when you need to modify an existing recipient's address details.
Why this helps
An old address can turn a thoughtful gesture into returned mail and another task to resolve.
- Capture verified corrections close to where they are shared.
- Lower the chance of relying on stale recipient details.
- Avoid a separate address-book cleanup session.
Setup
Build it in a few focused steps.
- 1Connect Slack and Handwrytten to Notis once in the portal.
- 2Create an automation in the portal or tell Notis what address updates to handle.
- 3Give one plain-language instruction to update an existing Handwrytten recipient only when an authorized Slack message clearly provides a correction.
- 4Choose the Slack channel message trigger and a channel for run reports.
- 5Test with one real, verified address correction and confirm the matching recipient was updated.
Questions about this workflow
Should this use any address mentioned in Slack?
No. In the instruction, limit updates to clear, verified corrections and the intended recipient.
Does this create a new address entry?
This workflow updates an existing recipient. Use a separate recipient-creation workflow for a new contact.
When this happens · Trigger
Do this · Action
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.
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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