Start a Bolna call from a Slack approval reaction
A clear approval reaction can move an agreed call from pending to underway.
Trigger
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Action
Make a phone call from agent
Initiate calls
Why this helps
Approved outreach can still wait if someone must notice the reaction and remember to place the call.
- Turn a lightweight team signal into an actionable call.
- Reduce the need to monitor approved messages manually.
- Keep outreach gated by the reaction your team agrees to use.
Setup
Build it in a few focused steps.
- 1Connect Slack and Bolna to Notis once in the portal.
- 2Create an automation or ask Notis to call the relevant contact after an approval reaction in Slack.
- 3Describe the meaning of the approval signal and the call purpose in one instruction.
- 4Select Slack's Message Reaction Added trigger and choose a channel for run reports.
- 5Test with one real approval reaction and verify the intended call starts.
Questions about this workflow
Can a reaction represent approval for different call types?
Describe the approval context and intended call clearly in the instruction.
Will removing the reaction stop a call?
This workflow starts a call when a reaction is added; the reaction-removed event does not reverse a call already initiated.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slack to Bolna. A trigger fires from one place; an action lands in another.
Slack triggers
Bolna actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Delete agent by id
Delete an agent
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Delete batch by id
Delete a batch
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Fetch all batches by agent id
List all batches for agent
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Get all agents
List all agents
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 all phone numbers
List all phone numbers for your account
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Get execution by id
Retrieve specific execution by `execution id`
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Make a phone call from agent
Initiate calls
Reaction Added Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.
Retrieve agent by id
Retrieve an agent
Connect any two apps with Notis in the middle.
Slack and Bolna, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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