Automate invoice data extraction, Google Drive syncing, and Google Sheets logging

This Latenode automation template automatically processes incoming invoice emails by detecting attachments in the user's Gmail inbox, downloading the PDF files to a designated Google Drive folder, and logging key invoice data (date, description, total price, file link) into a Google Sheets spreadsheet.

It leverages the OpenAI GPT-4 language model to extract the relevant information from the PDF invoices, ensuring the data is formatted correctly for the Google Sheets integration. This solution helps users streamline their invoice management, financial record-keeping, and document organization workflows.

Updated Apr 2, 2026Est. run: 9sEst. cost: $0.0006

Latenode bills workflow runs in credits: 1 credit = 30 seconds of processing. Minimum charge per run depends on your plan. Plug-and-Play (PnP) AI nodes are billed separately—each PnP token is $1 USD, charged pay-as-you-go at vendor cost plus a small processing fee, with no API keys required.

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Workflow preview

What this template does

Detects incoming invoices in the user's Gmail inbox
Downloads PDF attachments to a designated Google Drive folder
Extracts key invoice data (date, description, total price) using OpenAI GPT-4
Logs the extracted data into a Google Sheets spreadsheet
Organizes and centralizes the user's invoice records for easy reference

How it works

Trigger

Monitor Gmail for Unread Invoices

The automation monitors the user's Gmail inbox for unread emails containing PDF attachments, which are likely to be invoices.

Action

Download Invoice PDFs to Google Drive

When an unread invoice email is detected, the automation downloads the attached PDF file(s) to a designated Google Drive folder.

Extract Invoice Data Using GPT-4

The automation uses the OpenAI GPT-4 language model to analyze the contents of the downloaded PDF invoice(s) and extract key information such as the date, description, total price, and other relevant details.

Action

Log Invoice Data to Google Sheets

The extracted invoice data is then logged into a Google Sheets spreadsheet, providing a centralized record of the invoices and their details.

Setup guide

Connect Gmail Credential

Add your Gmail account credential via OAuth in the Latenode Credentials panel.

Configure Google Drive Connection

In the Latenode builder, add a Google Drive node and select the Google Drive credential you added in the previous step. Configure the target folder where invoice PDFs will be saved.

Set up Google Sheets Integration

Add a Google Sheets node to the workflow and select the Google Sheets credential in the Latenode Credentials panel. Specify the spreadsheet ID and worksheet where the invoice data will be logged.

Connect OpenAI GPT-4 Credential

Add your OpenAI API key as a credential in the Latenode Secrets panel. This will be used to access the GPT-4 language model for extracting invoice data.

Map Invoice Data Fields

In the node settings for the 'Extract from File' and 'Structured Output Parser' nodes, map the relevant invoice fields (date, description, total price, file link) to the output data structure expected by the Google Sheets integration.

Requirements

A Gmail account with access to the inbox where invoices are received

A Google Drive account with a designated folder to store the downloaded invoice PDFs

A Google Sheets account with a spreadsheet to log the invoice details

Access to the OpenAI GPT-4 API with appropriate API keys and permissions

FAQ

Common questions about this template

Each run uses credits on your Latenode plan. We charge for processing time (1 credit = 30 seconds). Your actual cost depends on your plan and how long the run takes. See pricing plans for plans and how credits work.

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