Send an Address Change Letter from a WhatsApp Conversation
When someone confirms a new mailing address in chat, send the approved letter without copying details across tools.
Trigger
Webhook received
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
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
Address updates buried in chat can lead to mail going to the wrong place or never being sent.
- Keep the confirmed address and mailing task together.
- Reduce manual copying between chat and mailing tools.
- Require recipient and document details before sending.
Setup
Build it in a few focused steps.
- 1Connect 2chat and Docupost once in the Notis portal.
- 2Create an automation in the portal or tell Notis in plain language.
- 3In one instruction, ask Notis to send the approved address-change letter using the confirmed recipient and address from the request.
- 4Choose the notis_webhook trigger and where run reports should go.
- 5Test with one real conversation and approved letter PDF.
Questions about this workflow
Does this run automatically from every 2chat message?
No. This workflow starts when an HTTP request reaches its Notis webhook. The request needs to include the relevant conversation details.
What does Docupost need to send the letter?
The recipient, mailing address, sender details, and a document PDF URL must be available and confirmed.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link 2chat to Docupost. A trigger fires from one place; an action lands in another.
2chat 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://...')
Connect any two apps with Notis in the middle.
2chat and Docupost, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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