Record Brex expenses from Slack
Capture expense details while they are fresh, without asking someone to repeat them in another tool.
Trigger
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Action
Create Expense
Create a new expense.
Why this helps
Expense details shared in chat can be lost before they reach the finance workflow.
- Reduce manual re-entry of expense information.
- Capture reported expenses closer to when they happen.
- Keep expense follow-up tied to the original report.
Setup
Build it in a few focused steps.
- 1Connect Slack and Brex to Notis once in the portal.
- 2Create the automation in the portal, or ask Notis to make it conversationally.
- 3Write one instruction for Notis to create a Brex expense only when a message clearly reports an approved business expense and includes usable details.
- 4Select the Slack channel message trigger and choose a run-report channel.
- 5Test with one real expense report that is ready to record.
Questions about this workflow
Will it create expenses from casual mentions?
Instruct Notis to require a clear expense report and sufficient details before creating an entry.
Do I have to map Slack text into expense fields?
No. The prompt describes the result, and Notis interprets the message context.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slack to Brex. A trigger fires from one place; an action lands in another.
Slack triggers
Brex actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Create Budget
Create a new budget for departments or projects.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Create Card
Create a new card and assign it to a user.
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Create Department
Create a new department.
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 Expense
Create a new expense.
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 Location
Create a new location.
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Create Job Title
Create a new job title.
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Create User
Create a new user in the brex account.
Reaction Added Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.
Create Vendor Card
Create a new vendor card.
Connect any two apps with Notis in the middle.
Slack and Brex, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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No card. Works with personal or business Brex.