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Make expense report review less manual

Ask for an expense report to be processed in Slack and let Notis start an Extracta ai extraction for its rows and details.

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 Extraction

Tool to initiate a new document extraction process. use when you have prepared extraction details and need to start processing the document. returns a unique extraction id for tracking.

Why this helps

Expense reports can become another document to reopen and manually reconcile during an already fragmented day.

  • Cuts down on manual copying from reports
  • Links the processing step to the original request
  • Makes review easier to resume after interruption

Setup

Build it in a few focused steps.

  • 1Connect Slack and Extracta ai once via the Notis portal.
  • 2Create an automation from Automations -> New Automation or ask Notis conversationally.
  • 3Write one instruction for Notis to start an Extracta ai extraction when a channel message shares an expense report and asks for its data to be extracted.
  • 4Choose Slack Channel Message Received and select the run report channel.
  • 5Test the prompt with one actual report and an explicit request.

Questions about this workflow

Does extraction reconcile expenses automatically?

The action starts document extraction. Review and reconciliation remain separate work.

Can the prompt distinguish expense reports from receipts?

Yes. Describe the document type and the request that should trigger this workflow.

When this happens · Trigger

Do this · Action

Supported Triggers and Actions

Notis builds workflows that link Slack to Extracta ai. A trigger fires from one place; an action lands in another.

Slack triggers

Extracta ai actions

Recurring trigger

Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.

TriggerScheduled

Create Extraction

Tool to initiate a new document extraction process. use when you have prepared extraction details and need to start processing the document. returns a unique extraction id for tracking.

ActionInstant

Webhook trigger

Notis starts this workflow when an external tool or custom backend sends an HTTP request.

TriggerInstant

Delete Extraction

Tool to delete an extraction process. use after confirming the extraction id to remove. example: delete extraction with id '123e4567-e89b-12d3-a456-426614174000'.

ActionInstant

New Channel Created Trigger

Triggered when a new channel is created in Slack.

TriggerInstant

View Extraction

Tool to retrieve details of an existing extraction process. use after starting an extraction to monitor its status and retrieve results.

ActionInstant

Channel Message Received

Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.

TriggerInstant

Direct Message Received

Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.

TriggerInstant

Message Reaction Added

Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.

TriggerInstant

Message Reaction Removed

Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.

TriggerInstant

Reaction Added Trigger

DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.

TriggerInstant

Connect any two apps with Notis in the middle.

Slack and Extracta ai, or any other combination from 1,000+ integrations.

When this happens · Trigger

Do this · Action

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