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Notis

Make paid invoices easy to spot in Slack

Let a confirmed Bitcoin payment update the Slack conversation where your team is already tracking it.

Trigger

Webhook received

Notis starts this workflow when an external tool or custom backend sends an HTTP request.

Action

Add reaction to message

Adds a specified emoji reaction to an existing message in a slack channel, identified by its timestamp; does not remove or retrieve reactions.

Why this helps

Payment confirmation lives in BTCPay while the team is still scanning Slack for updates.

  • Mark the existing conversation without adding a new message
  • Help teammates spot confirmed payments quickly
  • Keep payment updates alongside the relevant discussion

Setup

Build it in a few focused steps.

  • 1Connect BTCPay Server and Slack once in Notis.
  • 2Create an automation in plain language or in Automations, New Automation.
  • 3Instruct Notis to check a specified invoice and add a chosen reaction to its matching Slack message when paid.
  • 4Choose the webhook trigger and where Notis should send run reports.
  • 5Test with one paid invoice and its Slack message.

Questions about this workflow

Can Notis find the right Slack message?

Tell Notis how to identify the matching message, such as a known channel and invoice reference. The workflow needs enough context to locate it.

Does this send a Slack message?

No. This action adds a reaction to an existing message.

When this happens · Trigger

Do this · Action

Supported Triggers and Actions

Notis builds workflows that link Btcpay server to Slack. A trigger fires from one place; an action lands in another.

Btcpay server triggers

Slack actions

Recurring trigger

Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.

TriggerScheduled

Set snooze duration

Deprecated: turns on do not disturb mode for the current user, or changes its duration. use `set dnd duration` instead.

ActionInstant

Webhook trigger

Notis starts this workflow when an external tool or custom backend sends an HTTP request.

TriggerInstant

Add a custom emoji to a Slack team

Deprecated: adds a custom emoji to a slack workspace given a unique name and an image url. use `add emoji` instead.

ActionInstant

Add an emoji alias

Adds an alias for an existing custom emoji in a slack enterprise grid organization.

ActionInstant

Add a remote file

Adds a reference to an external file (e.g., google drive, dropbox) to slack for discovery and sharing, requiring a unique `external id` and an `external url` accessible by slack.

ActionInstant

Add a star to an item

Stars a channel, file, file comment, or a specific message in slack.

ActionInstant

Add call participants

Registers new participants added to a slack call.

ActionInstant

Add emoji

Adds a custom emoji to a slack workspace given a unique name and an image url; subject to workspace emoji limits.

ActionInstant

Add reaction to message

Adds a specified emoji reaction to an existing message in a slack channel, identified by its timestamp; does not remove or retrieve reactions.

ActionInstant

Connect any two apps with Notis in the middle.

Btcpay server and Slack, or any other combination from 1,000+ integrations.

When this happens · Trigger

Do this · Action

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