# Auto invoice & receipt OCR to Google Sheets – Drive, Gmail: n8n workflow > Started by an incoming Telegram message, and works across Gmail, Google Drive, Google Sheets and Telegram. Source: https://millionrounds.com/workflow/auto-invoice-and-receipt-ocr-to-google-sheets-drive-gmail (Millionrounds; every figure on the page links to its filing or article) [Automation library](https://millionrounds.com/workflows) · [Money admin](https://millionrounds.com/workflows?category=Money+admin#library) # Auto invoice & receipt OCR to Google Sheets – Drive, Gmail Started by an incoming Telegram message, and works across Gmail, Google Drive, Google Sheets and Telegram. 21 steps, 1 branch, 5 loops or waits: large, and worth reading before you trust it with anything live. Large [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fauto-invoice-and-receipt-ocr-to-google-sheets-drive-gmail) **21 steps** Large: read it before trusting it with anything live **1** Branch: places the flow splits **5** Loops or waits **4** Services it connects to ## The flow Starts it 3 Logic 12 Service 6 The steps in the order they run, from what starts it. - 1 **Telegram Trigger Image** Telegram trigger *Starts it* - 2 **Gmail Trigger** Gmail trigger *Starts it* - 3 **Google Drive Trigger New Files** Google Drive trigger *Starts it* - 4 **Create File Name For Telegram** Code *Logic* - 5 **Loop Over Emails** Split In Batches *Logic* - 6 **Loop Over Items** Split In Batches *Logic* - 7 **Google Save Files 2** Google Drive *Service* - 8 **Loop Over Attachments** Split In Batches *Logic* - 9 **If** If *Logic* - 10 **Google Drive Get Receipt** Google Drive *Service* - 11 **Create File Name** Code *Logic* - 12 **Split Out Binary Files** Code *Logic* - 13 **Move file to base64 string** Extract From File *Service* - 14 **Google Drive Save Files** Google Drive *Service* - 15 **Prompt** Set *Logic* - 16 **Wait For Saving** Wait *Logic* - 17 **Gemini API** Http Request *Service* - 18 **JSON to string** Set *Logic* - 19 **Parse string** Code *Logic* - 20 **Add to Google Sheets** Google Sheets *Service* - 21 **Wait For Saving Data** Wait *Logic* ## How it's built - **Starts on:** An incoming Telegram message - **Steps:** 21, with 1 branch, 5 loops or waits - **Size:** Large: read it before trusting it with anything live - **Connects to:** Gmail, Google Drive, Google Sheets, Telegram - **Model:** None. This is plumbing, not judgement ## Questions What does it need to run? An n8n account, plus your own Gmail, Google Drive, Google Sheets and Telegram accounts. You connect your own accounts after importing it; none are included. What starts it? It starts on an incoming Telegram message. Does it use AI? No. Every step is fixed logic or a call to a service, so it does the same thing every time. How long does it take to set up? Take your time. At 21 steps it is large: read it before trusting it with anything live. How do I import it? Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts. **Before you run it** Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 21 steps before you point it at anything that matters. ## Run it in n8n - **Create your n8n account** Free to start. n8n is where the workflow runs. [Create an n8n account ↗](https://millionrounds.com/n8n) - **Download the workflow** Free with a Millionrounds account. [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fauto-invoice-and-receipt-ocr-to-google-sheets-drive-gmail) - **Paste it into n8n** Open a new workflow in n8n and paste. Then connect your own accounts. Stored with the author's traces removed: canvas notes, instance identifiers, saved credential names and any live document they had left behind. ## Connects to Each opens the other workflows that use it. [Gmail](https://millionrounds.com/workflows?service=Gmail#library)[Google Drive](https://millionrounds.com/workflows?service=Google+Drive#library)[Google Sheets](https://millionrounds.com/workflows?service=Google+Sheets#library)[Telegram](https://millionrounds.com/workflows?service=Telegram#library) ## Workflows like it Also money admin, with the same services where possible, closest in size first. - [**Send Stripe payment invoices with Gmail and Google Drive** 21 steps · Gmail, Google Drive](https://millionrounds.com/workflow/send-stripe-payment-invoices-with-gmail-and-google-drive) - [**Send tailored Upwork job proposals with Gemini and Slack** 21 steps · Gmail, Google Drive](https://millionrounds.com/workflow/send-tailored-upwork-job-proposals-with-gemini-and-slack) - [**Telegram payment, invoicing and refund workflow for Stars** 21 steps · Google Sheets, Telegram](https://millionrounds.com/workflow/telegram-payment-invoicing-and-refund-workflow-for-stars) - [**Automate invoice processing with Google Drive and Sheets** 21 steps · calls a model · Google Drive, Google Sheets](https://millionrounds.com/workflow/automate-invoice-processing-with-google-drive-and-sheets) - [**Consolidate Stripe, PayPal, Shopify and bank revenue** 21 steps · calls a model · Gmail, Google Drive](https://millionrounds.com/workflow/consolidate-stripe-paypal-shopify-and-bank-revenue) - [**Expense organizer with Google Drive and Gemini** 21 steps · calls a model · Gmail, Google Drive](https://millionrounds.com/workflow/expense-organizer-with-google-drive-and-gemini)