Move overdue invoice follow-up out of your memory
Let a status change on the invoice issue start a deliberate letter follow-up, with the final details checked before mailing.
Trigger
Issue Updated Trigger
Triggered when an issue is updated. For example labels are changed, issue status is changed, etc.
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
Invoice follow-up competes with delivery work, and a founder can lose track of when a formal notice is due.
- Ties the next follow-up step to the issue tracking the invoice.
- Reduces repeated checking for which invoices need a formal notice.
- Makes recipient and document verification part of the handoff.
Setup
Build it in a few focused steps.
- 1Connect Linear and Docupost once in the Notis portal.
- 2Create an automation in the portal or tell Notis conversationally to prepare an overdue invoice notice when its Linear issue reaches the specified state.
- 3Give Notis one plain-language instruction describing qualifying invoice issues and the confirmation needed before mailing.
- 4Select the Linear Issue Updated trigger and choose a channel for run reports.
- 5Test with one real overdue invoice issue and verify the letter and recipient details.
Questions about this workflow
Can Notis decide whether an invoice is legally overdue?
Set the qualifying status or language in the prompt based on your process. Confirm the notice and mailing details before sending.
Does Docupost create the notice text?
This action sends a letter using a provided document. Confirm the document details before the automation proceeds.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Linear to Docupost. A trigger fires from one place; an action lands in another.
Linear 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://...')
Comment Received Trigger
Triggered when a comment is received.
Issue Created Trigger
Triggered when a new issue is created.
Issue Updated Trigger
Triggered when an issue is updated. For example labels are changed, issue status is changed, etc.
Private Team Comment Created
Fires when a new comment is posted on an issue in a private Linear team (polled with the connected user's token).
Private Team Issue Created
Fires when a new issue appears in a private Linear team (polled with the connected user's token).
Private Team Issue Properties Updated
Fires when properties on an issue change in a private Linear team (polled with the connected user's token).
Connect any two apps with Notis in the middle.
Linear and Docupost, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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