Cancel payment intents by removing a Slack reaction
Changed your mind? Remove your reaction from Slack and the payment intent cancels automatically in Stripe.
Trigger
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Action
Create payment intent
Creates a stripe paymentintent to initiate and process a customer's payment; using `application fee amount` for a connected account requires the `stripe-account` header.
Why this helps
Canceling payment intents requires logging into Stripe and manually clearing them, especially if a sale falls through.
- Cancel payments instantly without leaving Slack
- Quickly handle deal fallthrough scenarios
- Reduce wasted payment attempts
- Streamline payment lifecycle management
Setup
Build it in a few focused steps.
- 1Connect Slack and Stripe to Notis.
- 2Create an automation: name it 'Reaction Removed Payment Cancel', use this prompt: 'When I remove a specific emoji reaction from a Slack message, cancel the corresponding payment intent in Stripe', choose 'Message Reaction Removed'.
- 3Notis will link removed reactions to payment intents created earlier.
- 4Set your Slack channel for confirmations.
- 5Test by creating a payment intent (via earlier automation or manually), reacting, then removing the reaction to cancel.
Questions about this workflow
How does Notis know which payment intent to cancel?
Notis tracks which payment intents you created in your Slack channel and ties them to your emoji reactions. When you remove the reaction, it cancels that payment intent.
What if I added the reaction but didn't intend to create a payment intent?
Make sure your automation setup clearly defines when reactions trigger payment intents. You can always manually cancel in Stripe if needed.
Can multiple people react to the same message?
Yes, each person's reaction is tracked separately, so removing your reaction only affects your payment intent.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slack to Stripe. A trigger fires from one place; an action lands in another.
Slack triggers
Stripe actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Cancel subscription
Cancels a customer's active stripe subscription at the end of the current billing period, with options to invoice immediately for metered usage and prorate charges for unused time.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Confirm payment intent
Confirms a stripe paymentintent to finalize a payment; a `return url` is necessary if the payment method requires customer redirection.
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Create Customer
Creates a new customer in stripe, required for creating charges or subscriptions; an email is highly recommended for customer communications.
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Create an invoice
Creates a new draft stripe invoice for a customer; use to revise an existing invoice, bill for a specific subscription (which must belong to the customer), or apply detailed customizations.
Direct Message Received
Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.
Create payment intent
Creates a stripe paymentintent to initiate and process a customer's payment; using `application fee amount` for a connected account requires the `stripe-account` header.
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Create a price
Creates a new stripe price for a product, defining its charges (one-time or recurring) and billing scheme; requires either an existing `product` id or `product data`.
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Create product
Creates a new product in stripe, encoding the request as `application/x-www-form-urlencoded` by flattening nested structures.
Reaction Added Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.
Create Refund
Creates a full or partial refund in stripe, targeting either a specific charge id or a payment intent id.
Connect any two apps with Notis in the middle.
Slack and Stripe, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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