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Capture receipt details from Slack automatically

Share a receipt in Slack and let Eagle doc extract the expense details for you.

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

Receipt OCR V3

Tool to process receipt images into structured JSON with 40+ fields including merchant info, line items, taxes, and payments. Use when extracting detailed data from receipt images or PDFs.

Why this helps

Receipt details get buried in conversations and are easy to forget when expense time comes around.

  • Keep receipt data from getting lost in channel history.
  • Extract merchant, totals, taxes, and payment details in one pass.
  • Reduce the time spent retyping expense information.

Setup

Build it in a few focused steps.

  • 1Connect Slack and Eagle doc once through the Notis portal.
  • 2Create an automation in the portal and describe how to process receipt images or PDFs posted in your chosen channel.
  • 3Pick Slack's Channel Message Received trigger and choose where Notis should report runs.
  • 4Test by sharing one real receipt in that channel.

Questions about this workflow

Can this process a receipt shared as an image?

Yes. Eagle doc Receipt OCR V3 processes receipt images and PDFs into structured details.

Do I need to map receipt fields?

No. Describe the desired receipt extraction 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 Eagle doc. A trigger fires from one place; an action lands in another.

Slack triggers

Eagle doc actions

Recurring trigger

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

TriggerScheduled

Process Any Document with OCR

Tool to process any document type with OCR and automatic classification. Supports bank statements, resumes, passports, delivery sheets, and more. Use when you need to extract structured data from various document types.

ActionInstant

Webhook trigger

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

TriggerInstant

Submit Batch Any Document OCR Task

Tool to submit batch OCR processing tasks for various document types including bank statements, resumes, passports, delivery sheets, and more. Use when you need to asynchronously process documents with custom configurations. The task is processed asynchronously; use the Results Check API with the returned task ID to monitor status and retrieve results.

ActionInstant

New Channel Created Trigger

Triggered when a new channel is created in Slack.

TriggerInstant

Delete Batch Processing Task

Tool to delete a submitted batch processing task from the queue. Use when you need to cancel or remove a previously submitted batch OCR task before processing completes.

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

Eagle Doc Invoice OCR from Base64

Tool to extract invoice data from base64 encoded images using Eagle Doc OCR API. Use when you need to process invoice images that are already base64 encoded. Supports optional parameters for privacy control, coordinate extraction, and full text extraction.

ActionInstant

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

Get Management Quota

Tool to get contractual quota allowance and current usage counters for all workloads. Use when you need to check remaining capacity for dashboards or billing workflows.

ActionInstant

Message Reaction Added

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

TriggerInstant

Receipt OCR V1 (Legacy)

Tool to process receipt images with v1 API to extract structured data. Use when you need to extract merchant details, line items, totals, and payment information from receipt images or PDFs. Note: This is a deprecated legacy version; consider using newer API versions if available.

ActionInstant

Message Reaction Removed

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

TriggerInstant

Receipt OCR V3

Tool to process receipt images into structured JSON with 40+ fields including merchant info, line items, taxes, and payments. Use when extracting detailed data from receipt images or PDFs.

ActionInstant

Reaction Added Trigger

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

TriggerInstant

Get Receipt Quota V1

Tool to get quota information for receipt processing API v1 (deprecated). Use when you need to check remaining quota for receipt OCR processing.

ActionInstant

Connect any two apps with Notis in the middle.

Slack and Eagle doc, or any other combination from 1,000+ integrations.

When this happens · Trigger

Do this · Action

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