Know When Consensus Shifts
Your team reacted 'approved' to a decision, and you start implementing it. But then someone removes their reaction—they had a change of mind. Notis alerts you on WhatsApp in real-time.
Trigger
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Action
Send message
Send a text message to a whatsapp number. note: the message will reflect on the recipient's phone number only if they have texted first.
Why this helps
Implicit decisions made via reactions can shift silently. You implement something thinking it was approved, but consensus changed and no one told you.
- Catch decision shifts before you implement
- No surprises mid-execution
- Stay in sync with team consensus
- Reduce rework from miscommunication
Setup
Build it in a few focused steps.
- 1Connect Slack and WhatsApp to Notis.
- 2Create automation: 'When someone removes a reaction from a decision message (e.g., 🟢), alert me on WhatsApp.'
- 3A teammate removes their 'approved' reaction from a decision message.
- 4Notis sends WhatsApp: 'Changed: @person removed 🟢 from decision X. New consensus?'
- 5You can re-discuss or proceed based on the new info.
Questions about this workflow
Does this trigger on every emoji removal or just key ones?
You choose. Tell Notis: 'Only alert on 🟢, 🟡, 🔴 removals' (decisions) or 'All emoji removals.'
What if it's an accident?
Notis will note: 'Might be accidental.' You can dismiss or investigate.
Can I see removal history?
Yes. Ask Notis: 'Show me reaction changes for decision X' and it'll show who removed what when.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slack to Whatsapp. A trigger fires from one place; an action lands in another.
Slack triggers
Whatsapp actions
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Create message template
Create a new message template for the whatsapp business account. templates must be approved by whatsapp before they can be used. templates are required for marketing messages and messages sent outside the 24-hour window.
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Delete message template
Delete a message template from the whatsapp business account. this permanently removes the template and it cannot be recovered. only delete templates that are no longer needed.
Direct Message Received
Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.
Get business profile
Get the business profile information for a whatsapp business phone number. this includes business details like description, address, website, and contact info.
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Get media
Get information about uploaded media including a temporary download url. the download url is valid for 5 minutes and can be used to retrieve the actual media file. this is useful for downloading media that was sent to your whatsapp number.
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Get media info
Get metadata about uploaded media without generating a download url. this is useful for checking file size, type, and hash without downloading the file. use get media if you need the actual download url.
Reaction Added Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.
Get message templates
Get all message templates for the whatsapp business account. templates are required for sending messages outside the 24-hour window and for marketing/utility messages.
Reaction Removed Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_REMOVED` instead. Triggered when a reaction is removed from a message.
Get phone number
Get details of a specific phone number associated with a whatsapp business account.
New Bot Message Received Trigger
DEPRECATED: use `SLACK_CHANNEL_MESSAGE_RECEIVED` with `is_bot_message=true` instead. Triggered when a new bot message is posted to a Slack channel.
Get phone numbers
Get all phone numbers associated with a whatsapp business account (waba).
Connect any two apps with Notis in the middle.
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When this happens · Trigger
Do this · Action
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