Follow WhatsApp delivery with a confirmation letter
Use a real-time message status change as the cue for a physical follow-up, and keep recipient and document confirmation in the send process.
Trigger
Message Status Updated
Triggers when a WhatsApp message status changes. IMPORTANT LIMITATION: WhatsApp Cloud API does not provide a native polling endpoint for message status. Status updates are ONLY delivered via webhooks in real-time. This trigger cannot directly poll the WhatsApp API for status updates. This trigger will return empty results as WhatsApp does not support this operation. To track message status updates, you must: 1. Set up a webhook endpoint to receive status notifications from WhatsApp 2. Store the webhook data in your own database 3. Use a different mechanism to query your stored webhook data For more information, see: - https://developers.facebook.com/docs/whatsapp/cloud-api/webhooks
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
Important follow-ups can be missed when message delivery status and physical correspondence are handled separately.
- Connect a delivery status to a practical follow-up
- Avoid repeatedly checking message status by hand
- Keep document and recipient confirmation in the flow
Setup
Build it in a few focused steps.
- 1Connect WhatsApp and Docupost once in the Notis portal.
- 2Create an automation and specify which message status change should lead to the related letter and what details require confirmation.
- 3Pick the WhatsApp Message Status Updated trigger.
- 4Choose where Notis should send run reports.
- 5Test with one real status event and verify the recipient and PDF URL before sending.
Questions about this workflow
Does this trigger poll WhatsApp for status changes?
No. WhatsApp Cloud API provides status updates through real-time webhooks, and this trigger cannot directly poll the API.
Can every status change send a letter?
Define the qualifying status and follow-up in your instruction. Keep confirmation of the recipient and PDF required before the send.
What does the letter action require?
A recipient, sender, and PDF URL. Confirm these details before Notis sends through Docupost.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Whatsapp to Docupost. A trigger fires from one place; an action lands in another.
Whatsapp 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://...')
Message Status Updated
Triggers when a WhatsApp message status changes. IMPORTANT LIMITATION: WhatsApp Cloud API does not provide a native polling endpoint for message status. Status updates are ONLY delivered via webhooks in real-time. This trigger cannot directly poll the WhatsApp API for status updates. This trigger will return empty results as WhatsApp does not support this operation. To track message status updates, you must: 1. Set up a webhook endpoint to receive status notifications from WhatsApp 2. Store the webhook data in your own database 3. Use a different mechanism to query your stored webhook data For more information, see: - https://developers.facebook.com/docs/whatsapp/cloud-api/webhooks
New Message Received
Triggered in real time when your WhatsApp Business number receives an inbound message from a customer (text, media, location, or contact). Delivered via the Cloud API webhook.
Interactive Reply Received
Triggered when a customer taps a quick-reply button or selects an option from an interactive list message you sent.
Message Template Status Update
Triggered when the review status of a WhatsApp message template changes — for example approved, rejected, or flagged — on your WhatsApp Business Account.
Connect any two apps with Notis in the middle.
Whatsapp and Docupost, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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