Supply Chain · Procurement & Operations

AI Agent for Automating Invoice Processing and Stock Management

Monitors Gmail for new orders, extracts invoice data, validates stock in Sheets, auto-creates PR or WO, and notifies teams via email and Slack.

How it works
1 Step
Gmail Trigger
2 Step
Extract Invoice Record
3 Step
Stock Check & Route
Monitors a defined Gmail address for new order emails and downloads the attached invoice for processing.

Overview

Three sentences describing the end-to-end automation and its benefits.

The AI agent ingests incoming order emails, extracts structured invoice details, and standardizes data for processing. It checks stock against Google Sheets and decides whether to create a Purchase Requisition or a Work Order. It logs every action in Sheets and notifies the right teams via email and Slack to close the loop.


Capabilities

What InvoiceStock AI Agent does

Automates data capture, stock validation, and downstream actions.

01

Extracts order and invoice details from incoming emails

02

Normalizes fields into a consistent data model (order_id, item_code, quantity, customer_name)

03

Checks stock levels in Google Sheets and compares against required quantity

04

Creates a Purchase Requisition when stock is insufficient

05

Creates a Work Order when stock is available

06

Notifies procurement via email and operations via Slack and logs all actions in Sheets

Why you should use InvoiceStock AI Agent for Automating Invoice Processing and Stock Management

This AI agent reduces manual data entry and errors by automatically extracting and normalizing invoice data, and it accelerates procurement decisions by validating stock in real time. It automates the end-to-end decision flow from receipt to PR/WO creation and team notifications.

Before
Manual data entry from invoices leads to typographical errors and mismatched data.
Stock checks rely on scattered spreadsheets and are slow.
Purchase Requisitions often wait for approvals due to missing data.
Work orders get delayed when stock is unknown or unvalidated.
Teams lack timely notifications, causing miscommunication.
After
Invoice data is captured accurately and consistently.
Stock availability is verified in real time before proceeding.
PRs are created automatically and routed for approval quickly.
WO creation happens immediately when stock is ready.
Teams receive instant, concise notifications and a complete audit trail.
Process

How it works

A simple three-step flow anyone can follow.

Step 01

Gmail Trigger

Monitors a defined Gmail address for new order emails and downloads the attached invoice for processing.

Step 02

Extract Invoice Record

Uses OCR or document extraction to capture order_id, item_code, quantity, and customer_name.

Step 03

Stock Check & Route

Checks stock in Google Sheets; if stock is insufficient, creates a Purchase Requisition and notifies procurement; if stock is available, creates a Work Order and notifies operations.


Example

Example workflow

A realistic shipment scenario showing task, time, and outcome.

Scenario: At 9:15 AM, an email arrives for 150 units of SKU-XYZ. Stock on hand is 120 units, so stock is insufficient. The AI agent creates Purchase Requisition PR-2026-042 in Google Sheets, emails procurement for approval, and logs the event. Outcome: PR created and awaiting approval; no Work Order is generated until stock is replenished. The workflow remains auditable in Sheets.

Invoice Processing GmailGoogle SheetsSlack AI Agent flow

Audience

Who can benefit

One supporting sentence.

✍️ Procurement teams

Streamlines PR creation and reduces cycle time.

💼 Operations departments

Receives timely WO notifications to start fulfillment.

🧠 Manufacturing & warehouse units

Ensures stock is validated before orders move.

Finance teams

Gives auditable records of all actions.

🎯 Small businesses

Scales automated procurement processes without increasing headcount.

📋 IT/Automation teams

Eases integration with existing tools and data sources.

Integrations

One supporting sentence with short explanation.

Gmail

Parses incoming order emails and downloads invoice attachments.

Google Sheets

Stores stock data, PR/WO records, and logs actions for auditing.

Slack

Sends real-time notifications to the operations channel and relevant teams.

Applications

Best use cases

One supporting sentence with short explanation.

High-volume order emails processed end-to-end with stock-based routing
Automatic PR creation when stock is insufficient
Automatic WO creation when stock is available
Instant cross-team notifications via email and Slack
Full audit logs of every action in Sheets
Gmail-Sheets-Slack integrated workflow

FAQ

FAQ

One supporting sentence with short explanation.

Yes. The AI agent can be configured to monitor a dedicated inbox or alias, and the core data extraction logic can be adapted to other email providers through standard connectors. Attachment handling and parsing rules may require adjustments, but the end-to-end flow remains the same: receive, extract, validate, route, and notify. For best results, keep a single, consistent inbound channel to simplify data integrity and auditing.

Invoice data is processed within your environment and stored in Google Sheets under your account. Access is restricted by user permissions and role-based controls. If you connect to external systems, data transfer can be governed by secure APIs and encryption. Audit logs are retained for compliance and can be exported when needed.

Stock data should come from a single source of truth (Google Sheets). The agent reads and updates stock levels in real time during checks, but you can configure a separate reconciliation step to handle discrepancies. Regular data maintenance is recommended to avoid stale values. If mismatches occur, a manual reconciliation workflow with an audit trail can be triggered.

Yes. The extractor supports multiple line items and can route based on per-item stock availability. The system logs outcomes for each item to preserve traceability and optimize fulfillment when partial stock exists.

Essential fields are enforced as required (order_id, item_code, quantity, customer_name). If missing, processing stops and procurement gets alerted. You can add fallback rules and a manual review path, with an audit trail to track the issue and resolution.

Yes. The workflow can be extended to create records in external ERP or procurement systems via API calls. You provide mapping rules and credentials, and a test mode can validate mappings before live use.

All actions are logged in Sheets with timestamps and identifiers. Logs are retained per your policy, are exportable, and support traceability across the end-to-end process for audits and compliance.


AI Agent for Automating Invoice Processing and Stock Management

Monitors Gmail for new orders, extracts invoice data, validates stock in Sheets, auto-creates PR or WO, and notifies teams via email and Slack.

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