# Validate workflows: GPT-4o with Drive and Slack: n8n workflow > Started by an event in a connected app, and works across Gmail, Google Drive, Google Sheets and Slack. Source: https://millionrounds.com/workflow/validate-workflows-gpt-4o-with-drive-and-slack (Millionrounds; every figure on the page links to its filing or article) [Automation library](https://millionrounds.com/workflows) · [Chat assistants](https://millionrounds.com/workflows?category=Chat+assistants#library) # Validate workflows: GPT-4o with Drive and Slack Started by an event in a connected app, and works across Gmail, Google Drive, Google Sheets and Slack. It puts Azure OpenAI behind a retrieval step, so answers are drawn from documents you supply rather than from the model alone. 16 steps, 1 branch, 1 loop or waits: a working afternoon to understand properly. Medium Calls a model: Azure OpenAI Retrieval [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fvalidate-workflows-gpt-4o-with-drive-and-slack) **16 steps** Medium: a working afternoon **1** Branch: places the flow splits **1** Loop or waits **4** Services it connects to ## The flow Starts it 1 Model 4 Logic 3 Service 8 The steps in the order they run, from what starts it. - 1 **Conversation Context Buffer** Memory Buffer Window *Model* - 2 **GPT-4o Language Model Configuration** Lm Chat Azure Open Ai *Model* - 3 **Format AI Response to JSON Schema** Output Parser Structured *Model* - 4 **When clicking ‘Execute workflow’** Manual trigger *Starts it* - 5 **AI-Powered Workflow Quality Analyzer** Agent *Model* - 6 **Fetch Workflow Files from Drive** Google Drive *Service* - 7 **Generate Human-Readable Report** Code *Logic* - 8 **Process Files One by One** Split In Batches *Logic* - 9 **Convert Report to Text File Format** Convert To File *Service* - 10 **Download Workflow JSON File** Google Drive *Service* - 11 **Archive Validation Report to Drive** Google Drive *Service* - 12 **Validate File Download Success** If *Logic* - 13 **Email Detailed Report to Stakeholders** Gmail *Service* - 14 **Send Validation Summary to Slack** Slack *Service* - 15 **Parse JSON Workflow Structure** Extract From File *Service* - 16 **Log Failed Downloads to Error Sheet** Google Sheets *Service* ## How it's built - **Starts on:** An event in a connected app - **Steps:** 16, with 1 branch, 1 loop or waits - **Size:** Medium: a working afternoon - **Connects to:** Gmail, Google Drive, Google Sheets, Slack - **Model:** Azure OpenAI - **Retrieval:** Answers are drawn from documents you supply, not from the model alone ## Questions What does it need to run? An n8n account, plus your own Gmail, Google Drive, Google Sheets and Slack accounts, and a key for Azure OpenAI. You connect your own accounts after importing it; none are included. What starts it? It starts on an event in a connected app. Does it use AI? Yes. It calls Azure OpenAI. Its answers draw on documents you give it, not on the model alone. Model calls are billed by the provider, not by n8n. How long does it take to set up? Plan an afternoon. 16 steps is enough that you should read each one before running it. 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 16 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%2Fvalidate-workflows-gpt-4o-with-drive-and-slack) - **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)[Slack](https://millionrounds.com/workflows?service=Slack#library) ## Workflows like it Also chat assistants, with the same services where possible, closest in size first. - [**AI Financial Assistant: Telegram to Google Sheets with USD** 16 steps · calls a model · Google Sheets, Telegram](https://millionrounds.com/workflow/ai-financial-assistant-telegram-to-google-sheets-with-usd) - [**Analyze high-priority tenders from Airtable** 16 steps · calls a model · Airtable, Gmail](https://millionrounds.com/workflow/analyze-high-priority-tenders-from-airtable) - [**Archive and index legal PDFs from Gmail with Gemini and Sheets** 16 steps · calls a model · Gmail, Google Drive](https://millionrounds.com/workflow/archive-and-index-legal-pdfs-from-gmail-with-gemini-and-shee) - [**Automate AI-powered employee onboarding emails and Slack updates** 16 steps · calls a model · Gmail, Google Drive](https://millionrounds.com/workflow/automate-ai-powered-employee-onboarding-emails-and-slack-upd) - [**Automate client onboarding with OpenAI and Google Drive** 16 steps · calls a model · ClickUp, Gmail](https://millionrounds.com/workflow/automate-client-onboarding-with-openai-and-google-drive) - [**Automate employee onboarding with Groq and Gmail** 16 steps · calls a model · Gmail, Google Drive](https://millionrounds.com/workflow/automate-employee-onboarding-with-groq-and-gmail)