Review large Brex transactions from Slack flags
When a teammate flags a large purchase, bring matching transaction details into the review flow quickly.
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
Get Transactions by Amount Range
Get transactions filtered by amount range.
Why this helps
A flagged purchase can lead to a manual hunt through recent activity and lose momentum.
- Reduce time spent searching for a flagged transaction.
- Keep the review cue connected to the team discussion.
- Bring matching spend into view while context is fresh.
Setup
Build it in a few focused steps.
- 1Connect Slack and Brex to Notis once in the portal.
- 2Create an automation in the portal, or ask Notis to set it up conversationally.
- 3Write one instruction for Notis to retrieve Brex transactions in the amount range when a Slack message clearly flags a purchase for review.
- 4Choose the Slack channel message trigger and a channel for run reports.
- 5Test with one real flagged purchase and a suitable amount range.
Questions about this workflow
Does it dispute or change a transaction?
No. The action retrieves transactions by amount range for review.
What should the Slack message include?
Ask for a clear review flag and a usable amount range or purchase context in the prompt.
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
Save your first hour today.
7-day trial of any paid plan, with 20$ of usage included.
No card. Works with personal or business Brex.