Find older unpaid invoices and prepare follow-up
Turn a periodic unpaid-invoice review into a short list of ready-to-check customer drafts.
Trigger
Recurring schedule
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Action
Create email draft
Creates a gmail email draft, supporting to/cc/bcc, subject, plain/html body (ensure `is html=true` for html), attachments, and threading.
Why this helps
Unpaid invoices can disappear from view when follow-up is mixed in with everyday email.
- Surface unpaid invoices using a chosen age threshold.
- Prepare follow-up without composing each message from scratch.
- Keep payment follow-up visible in Gmail drafts.
Setup
Build it in a few focused steps.
- 1Connect BTCPay Server and Gmail once in Notis.
- 2Create an automation that finds unpaid invoices older than your chosen threshold and prepares customer follow-up drafts.
- 3Choose a recurring schedule and select where run reports go.
- 4Test with one real unpaid invoice and check its status before sending.
Questions about this workflow
How old should an invoice be before follow-up?
Choose a threshold that fits your process and state it in the instruction.
Could a customer have paid since the invoice was found?
Have the automation recheck the current invoice status before drafting, and review the status before sending.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Btcpay server to Gmail. A trigger fires from one place; an action lands in another.
Btcpay server triggers
Gmail actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Modify email labels
Adds and/or removes specified gmail labels for a message; ensure `message id` and all `label ids` are valid (use 'listlabels' for custom label ids).
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Create email draft
Creates a gmail email draft, supporting to/cc/bcc, subject, plain/html body (ensure `is html=true` for html), attachments, and threading.
Create label
Creates a new label with a unique name in the specified user's gmail account.
Delete Draft
Permanently deletes a specific gmail draft using its id; ensure the draft exists and the user has necessary permissions for the given `user id`.
Delete message
Permanently deletes a specific email message by its id from a gmail mailbox; for `user id`, use 'me' for the authenticated user or an email address to which the authenticated user has delegated access.
Fetch emails
Fetches a list of email messages from a gmail account, supporting filtering, pagination, and optional full content retrieval.
Fetch message by message ID
Fetches a specific email message by its id, provided the `message id` exists and is accessible to the authenticated `user id`.
Fetch Message by Thread ID
Retrieves messages from a gmail thread using its `thread id`, where the thread must be accessible by the specified `user id`.
Connect any two apps with Notis in the middle.
Btcpay server and Gmail, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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