Mark text confirmations on the related Slack message
When a text confirms an arrangement already tracked in Slack, make that signal easy to spot with a reaction on the corresponding message.
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
A confirmation arriving by SMS can leave the Slack discussion looking unresolved, prompting duplicate checks and unnecessary follow-up.
- Make clear confirmations visible in the relevant Slack discussion.
- Reduce repeated status checking when the matching Slack message is identifiable.
- Keep the Slack conversation as the place to review the decision.
Setup
Build it in a few focused steps.
- 1Connect Android Texter and Slack once in Notis.
- 2Create an automation from any channel or in Automations, New Automation.
- 3Describe the outcome: when an SMS clearly confirms an item and the incoming data identifies its Slack channel and message timestamp, add the chosen reaction to that message; otherwise report that the message reference is missing.
- 4Choose the Notis webhook trigger and select where run reports should go.
- 5Test with one real confirmation that includes the matching Slack channel and message timestamp.
Questions about this workflow
Can a text alone identify the Slack message to react to?
Not reliably. This action requires the Slack channel and message timestamp. Supply those in the webhook data or another available context source.
Does the reaction prove a task is complete?
Only use this for confirmations your instruction defines clearly. A reaction marks the message and does not independently verify work completion.
What if the SMS is ambiguous or lacks a message reference?
Instruct Notis to leave Slack unchanged and report the missing or unclear context for human review.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Android Texter to Slack. A trigger fires from one place; an action lands in another.
Android Texter triggers
Slack actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Set snooze duration
Deprecated: turns on do not disturb mode for the current user, or changes its duration. use `set dnd duration` instead.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
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.
Add an emoji alias
Adds an alias for an existing custom emoji in a slack enterprise grid organization.
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.
Add a star to an item
Stars a channel, file, file comment, or a specific message in slack.
Add call participants
Registers new participants added to a slack call.
Add emoji
Adds a custom emoji to a slack workspace given a unique name and an image url; subject to workspace emoji limits.
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.
Connect any two apps with Notis in the middle.
Android Texter and Slack, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
Save your first hour today.
7-day trial of any paid plan, with 20$ of usage included.
No card. Works with personal or business Slack.