Get Slack receipts ready for expense review
Share a receipt in Slack and ask for it to be processed. Notis starts an Extracta ai extraction to capture the details for review.
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
Receipts get buried in busy channels, leaving someone to reopen files and type expense details later.
- Reduces retyping receipt details
- Keeps expense follow-up close to the original Slack request
- Makes receipt processing easier to hand off
Setup
Build it in a few focused steps.
- 1Connect Slack and Extracta ai to Notis once in the portal.
- 2Create an automation in Automations -> New Automation, or ask Notis to create one conversationally.
- 3Give Notis one plain-language instruction to start an Extracta ai extraction when a channel message shares a receipt and asks for expense processing.
- 4Select Slack Channel Message Received as the trigger and choose a channel for run reports.
- 5Test with one real receipt shared in a channel and review the extraction result.
Questions about this workflow
Does this process every image shared in Slack?
The instruction can ask Notis to act only when the message indicates that the attachment is a receipt and requests processing.
Do I need to map receipt fields?
No. Describe the requested outcome in the automation prompt; Notis interprets the instruction.
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.
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.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
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'.
New Channel Created Trigger
Triggered when a new channel is created in Slack.
View Extraction
Tool to retrieve details of an existing extraction process. use after starting an extraction to monitor its status and retrieve results.
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Direct Message Received
Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Reaction Added Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.
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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